The angle of elevation of a ladder leaning against a wall is 60° and the foot of the ladder is 4.6 m away from the wall. The length of the ladder is: a) 2.3 m b) 4.6 m c) 7.8 m d) 9.2 m

The angle of elevation of a ladder leaning against a wall is 60° and the foot of the ladder is 4.6 m away from the wall. The length of the ladder is: a) 2.3 m b) 4.6 m c) 7.8 m d) 9.2 m
by

1 Answer

Answer :

d) 9.2 m
by

Related questions

On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be (A) Towards the wall at its upper end (B) Away from the wall at its upper end (C) Upwards at its upper end (D) Downwards at its upper end

Description : On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be (A) Towards the wall at its upper end (B) Away from the wall at its upper end (C) Upwards at its upper end (D) Downwards at its upper end

Last Answer : (C) Upwards at its upper end

On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be (A) Downwards at its upper end (B) Upwards at its upper end (C) Perpendicular to the wall at its upper end (D) Zero at its upper end

Description : On the ladder resting on the ground and leaning against a smooth vertical wall, the force of  friction will be  (A) Downwards at its upper end  (B) Upwards at its upper end  (C) Perpendicular to the wall at its upper end  (D) Zero at its upper end 

Last Answer : (D) Zero at its upper end 

On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be?

Description : On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be?

Last Answer : On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be zero at its upper end.

On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be?

Description : On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be?

Last Answer : On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be upwards at its upper end.

A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train? a) 120 meters b) 180 meters c) 324 meters d) 150 meters

Description : A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train? a) 120 meters b) 180 meters c) 324 meters d) 150 meters

Last Answer : d) 150 meters

A 2m long ladder of mass 10 kg is kept against a wall such that its base is 1.2 m away from the wall.

Description : A 2m long ladder of mass 10 kg is kept against a wall such that its base is 1.2 m away from the wall.

Last Answer : A 2m long ladder of mass 10 kg is kept against a wall such that its base is 1.2 m away ... ladder? How much is the horizontal reaction at the wall?

9. Match List I (Mineral Oil Refineries) with List II (States) and select the correct answer using the code given below : L i st I L i st I I (Miner al Oil (St at es) Refiner ies) A. Numaligarh I. Punjab B. Bathinda II. Andhra Pradesh C. Tatipaka III. Madhya Pradesh D. Bina IV. Assam (1) A-IV, B-II, C-III, D-I (2) A-IV, B-I, C-II, D-III (3) A-II, B-I, C-IV, D-III (4) A-IV, B-III, C-II, D-I

Description : 9. Match List I (Mineral Oil Refineries) with List II (States) and select the correct answer using the code given below : L i st I L i st I I (Miner al Oil (St at es) Refiner ies) A. Numaligarh I. Punjab B. Bathinda II. Andhra ... C-II, D-III (3) A-II, B-I, C-IV, D-III (4) A-IV, B-III, C-II, D-I

Last Answer : (2) A-IV, B-I, C-II, D-III

Match List I (Vegetation zones) with List II (Mean Annual Temperature Range) and select the correct anwer using the code given below: L i st I L i st I I (Vegetati on (M ean Annual Zones) Temper atur e Range) A. Alpine I. Above 24C B. Temperate II. 17 to 24C C. Tropical III. Below 7C D. Sub-tropical IV. 7C to 17C

Description : Match List I (Vegetation zones) with List II (Mean Annual Temperature Range) and select the correct anwer using the code given below: L i st I L i st I I (Vegetati on (M ean Annual Zones) Temper atur e ... 24C B. Temperate II. 17 to 24C C. Tropical III. Below 7C D. Sub-tropical IV. 7C to 17C

Last Answer : IV. 7C to 17C

Match List I (Industries) with List II (Important Centers) and select the correct answer using the code given below : L i st I L i st I I (I n dust r i es) (I m por t an t Cent er s) A. Cotton textile I. Ludhiana B. Hosiery II. Rishra C. Jute III. Coimbatore D. Silk textile IV. Mysuru (1) A-I, B-III, C-IV, D-II (2) A-IV, B-I, C-II, D-III (3) A-III, B-II, C-I, D-IV (4) A-III, B-I, C-II, D-IV

Description : Match List I (Industries) with List II (Important Centers) and select the correct answer using the code given below : L i st I L i st I I (I n dust r i es) (I m por t an t Cent er s) A. Cotton textile I. Ludhiana B. Hosiery II. ... I, C-II, D-III (3) A-III, B-II, C-I, D-IV (4) A-III, B-I, C-II, D-IV

Last Answer : (4) A-III, B-I, C-II, D-IV

Rubika can do the 12 times the actual work in 72 days while sathya can do the one-half of the original work in 6 days. In how many days will both working together complete the 6 times of the original work? a) 20 days b) 25 days c) 30 days d) 35 days

Description : Rubika can do the 12 times the actual work in 72 days while sathya can do the one-half of the original work in 6 days. In how many days will both working together complete the 6 times of the original work? a) 20 days b) 25 days c) 30 days d) 35 days

Last Answer :  C Efficiency of Rubika = 16.666% Efficiency of sathya = 4.166% Total efficiency of rubika and sathya =(16+4) =20% Actual work 100/20=5 So, they can do actual work in 5 days So, 6 times work requires 30 days.

The total number of male, female and children working in a factory is 72. They earn Rs.16000 in a day. If the sum of the wages of all male, all female and all children is in the ratio of 36 : 20 : 24 and if the wages of an individual male, female and child is in the ratio 6 : 5 : 3, then how much a female earn in a day? a) Rs 500 b) Rs 1000 c) Rs 1500 d) Rs 1200

Description : The total number of male, female and children working in a factory is 72. They earn Rs.16000 in a day. If the sum of the wages of all male, all female and all children is in the ratio of 36 : 20 : 24 and if the ... 3, then how much a female earn in a day? a) Rs 500 b) Rs 1000 c) Rs 1500 d) Rs 1200

Last Answer : B Ratio of number of male, female and children =36/6:20/5:24/3 = 6x:4x:8x So, (6x + 4x + 8x) = 72 18x=72 X=72/18=4 So, x = 4 Therefore, number of female = 16 Share of all female =20/80*16000 =Rs 4000 So, Share of each female = 4000/4 = Rs 1000

A ladder is inclined to a wall making an angle of 30° with it. A man is ascending the ladder at the rate of 3 m/sec. How fast is he approaching the wa

Description : A ladder is inclined to a wall making an angle of 30° with it. A man is ascending the ladder at the rate of 3 m/sec. How fast is he approaching the wa

Last Answer : A ladder is inclined to a wall making an angle of 30° with it. A man is ascending the ladder at the ... 3 m/sec. How fast is he approaching the wall ?

A 5 m ladder of mass 25 kg is placed in a position where its inclination to a vertical wall is at 30?. A 100 kg man is to climb the ladder. If the coefficient of static friction is 0.25 the height along ladder at which the slipping will be induced would be a.2.4 m b.1.6 m c.0.8 m d.1.2 m e.0.5 m

Description : A 5 m ladder of mass 25 kg is placed in a position where its inclination to a vertical wall is at 30?. A 100 kg man is to climb the ladder. If the coefficient of static friction is 0.25 the height along ladder at which the slipping will be induced would be a.2.4 m b.1.6 m c.0.8 m d.1.2 m e.0.5 m

Last Answer : c. 0.8 m

My mother is three times as old as I am. Together, we are 47 years old. How old is my mother?

Description : My mother is three times as old as I am. Together, we are 47 years old. How old is my mother?

Last Answer : A: To solve this problem, you can use the following equation: Mother's age + My age = 47 years Mother's age = 3 * My age Substituting the second equation into the first equation, we get: 3 * My age + My ... 47 years / 4 = 11.75 years Therefore, my mother is 3 * 11.75 years = 35.25 years old.

The total agricultural land in a village is 1200 hectares. This is distributed among 320 families who form four groups in the following pattern. It is assumed that the land is distributed equally within each group. Identify the group of small farmers. Gr ou p Num ber of Tot al am ou nt of land Fam i l i es ow ned and oper at ed by each gr oup (i n hect ar es) A 100 300 B 180 300 C 30 300 D 10 300 (1) A (2) B (3) C (4) D

Description : The total agricultural land in a village is 1200 hectares. This is distributed among 320 families who form four groups in the following pattern. It is assumed that the land is distributed equally within each group. Identify the group of small ... B 180 300 C 30 300 D 10 300 (1) A (2) B (3) C (4) D

Last Answer : B 180 300

(1) Ramu is willing to work at Rs. 300 a day, but cannot find work.

Description : (1) Ramu is willing to work at Rs. 300 a day, but cannot find work.

Last Answer : (3) Own House

The wage rate of a worker in a country is Rs. 300 per day. Which of these person(s) would you consider unemployed? (1) Ramu is willing to work at Rs. 300 a day, but cannot find work. (2) Suresh is willing to work only at Rs. 400 a day or more, and cannot find work. (3) Shanti stays at home because she has young children to look after. (1) Ramu (2) Suresh (3) Ramu and Suresh (4) Ramu and Shanti

Description : The wage rate of a worker in a country is Rs. 300 per day. Which of these person(s) would you consider unemployed? (1) Ramu is willing to work at Rs. 300 a day, but cannot find work. (2) Suresh is ... she has young children to look after. (1) Ramu (2) Suresh (3) Ramu and Suresh (4) Ramu and Shanti

Last Answer : (1) Ramu is willing to work at Rs. 300 a day, but cannot find work.

Match List-I (Type of Unemployment) with List-II (Characteristics) and select the correct answer using the codes given below: L ist-I L ist -I I (Type of (Char acter ist ics) Unem ployment ) A. Seasonal I. Occurs during boom or recession in the economy B. Frictional II. An absence of demand for a certain type of workers C. Disguised III. Occurs when moving from one job to another D. Structural IV. Actual contribution by the additional labour is nil E. Cyclical V. Job opportunities during certain months in the year

Description : Match List-I (Type of Unemployment) with List-II (Characteristics) and select the correct answer using the codes given below: L ist-I L ist -I I (Type of (Char acter ist ics) Unem ... contribution by the additional labour is nil E. Cyclical V. Job opportunities during certain months in the year

Last Answer : (1) A-V, B-III, C-IV, D-II, E-I

The local telephone company sells me a landline connection only if I purchase a handset from them as well. Which of the following rights does this practice violate under the Consumer Protection Act 1986? (1) Right to represent (2) Right to information (3) Right to choose (4) Right to seek redressa

Description : The local telephone company sells me a landline connection only if I purchase a handset from them as well. Which of the following rights does this practice violate under the Consumer Protection Act 1986? (1) Right to represent (2) Right to information (3) Right to choose (4) Right to seek redressa

Last Answer : (3) Right to choose

Which of the following is NOT an indicator of economic development? (1) Increased per capita income (2) Decreased infant mortality (3) Increased life expectancy at birth (4) Decreased women participation in job marke

Description : Which of the following is NOT an indicator of economic development? (1) Increased per capita income (2) Decreased infant mortality (3) Increased life expectancy at birth (4) Decreased women participation in job marke

Last Answer : (4) Decreased women participation in job market

Which of the following Fundamental Rights includes the Right to Education? (1) Right to Equality (2) Right to Freedom (3) Cultural and Educational Rights (4) Right to Constitutional Remedies

Description : Which of the following Fundamental Rights includes the Right to Education? (1) Right to Equality (2) Right to Freedom (3) Cultural and Educational Rights (4) Right to Constitutional Remedies

Last Answer : (2) Right to Freedom

Which of the following statements about the Indian judiciary is true? (1) India has an integrated judiciary (2) The Judiciary in India is subordinate to the Executive (3) The Supreme Court is more powerful than Parliament (4) The Chief Justice of India appointed by the Prime Minister

Description : Which of the following statements about the Indian judiciary is true? (1) India has an integrated judiciary (2) The Judiciary in India is subordinate to the Executive (3) The Supreme Court is more powerful than Parliament (4) The Chief Justice of India appointed by the Prime Minister

Last Answer : 1) India has an integrated judiciary

Which of the following statements best reflects the "socialist" feature of the Preamble to the Constitution of India? (1) There are no unreasonable restrictions on how the citizens express their thoughts (2) The traditional social inequalities have to be abolished (3) Government should regulate the ownership of land and industry to reduce socio-economic inequalities (4) No one sh

Description : Which of the following statements best reflects the "socialist" feature of the Preamble to the Constitution of India? (1) There are no unreasonable restrictions on how the citizens express their ... regulate the ownership of land and industry to reduce socio-economic inequalities (4) No one sh

Last Answer : (3) Government should regulate the ownership of land and industry to reduce socio-economic inequalities

Which of the following group of States/ Union Territories have only one Lok Sabha constituency? (1) Arunachal Pradesh, Sikkim, Lakshadweep (2) Goa, Meghalaya, Andaman and Nicobar Islands' (3) Chandigarh, Sikkim, Mizoram (4) Manipur, Dadra and Nagar Haveli, Puducherry

Description : Which of the following group of States/ Union Territories have only one Lok Sabha constituency? (1) Arunachal Pradesh, Sikkim, Lakshadweep (2) Goa, Meghalaya, Andaman and Nicobar Islands' (3) Chandigarh, Sikkim, Mizoram (4) Manipur, Dadra and Nagar Haveli, Puducherry

Last Answer : (3) Chandigarh, Sikkim, Mizoram

In a democracy, the will of the people is supreme.' Which of the following statement concerning democracy in India best reflects this? (1) The President appoints the Prime Minister who is the leader of the political party possessing a majority in the Lok Sabha. (2) An assembly of elected representatives excercises political authority on behalf of the people. (3) In case of a difference between the two Houses of Parliament, the final decision is taken in a joint session of the two Houses. (4) The permanent executive has more powers than the political executive.

Description : In a democracy, the will of the people is supreme.' Which of the following statement concerning democracy in India best reflects this? (1) The President appoints the Prime Minister who is the ... session of the two Houses. (4) The permanent executive has more powers than the political executive.

Last Answer : 2) An assembly of elected representatives excercises political authority on behalf of the people

true about plantation agriculture? I. Generally plantation agriculture is considered as an example of subsistence farming. II. Generally single crop is grown on a large area in plantation agriculture. III. It has an interface of agriculture and industry. IV. It uses capital intensive inputs. (1) I and IV (2) III and IV (3) I, II and III (4) II, III and IV

Description : true about plantation agriculture? I. Generally plantation agriculture is considered as an example of subsistence farming. II. Generally single crop is grown on a large area in plantation agriculture. III. It has an interface of agriculture ... IV (2) III and IV (3) I, II and III (4) II, III and IV

Last Answer : (4) II, III and IV

. Which one of the following island is closest to the equator? (1) Minicoy (2) Car Nicobar (3) Little Nicobar (4) Great Nicobar

Description : . Which one of the following island is closest to the equator? (1) Minicoy (2) Car Nicobar (3) Little Nicobar (4) Great Nicobar

Last Answer : (4) Great Nicobar

Slash and Burn Agriculture' is known by specific name in different states of India. Match the shaded states marked in the given map with codes given in the table (Different names of Slash and Burn Agriculture) and select the correct answer using the code given below. B D A C Table (Di ffer ent Names of Slash and Bur n Agr i cult ur e) I. Bringa II. Waltre III. Dahiya IV. Kuruwa (1) A-III, B-IV, C-II, D-I (2) A-III, B-II, C-IV, D-I (3) A-I, B-IV, C-II, D-III (4) A-I, B-II, C-IV, D-III

Description : Slash and Burn Agriculture' is known by specific name in different states of India. Match the shaded states marked in the given map with codes given in the table (Different names of Slash and Burn Agriculture) and select the correct answer ... ) A-I, B-IV, C-II, D-III (4) A-I, B-II, C-IV, D-III

Last Answer : (4) A-I, B-II, C-IV, D-III

Observe the given map. Which one of the following statement is NOT true about the shaded state indicated on the map? (1) Society predominantly follows right of female ultimogeniture (2) The state is an example of areas with karst topography INDIA North eastern region (3) The state is a major producer of potatoes in India (4) Some parts of the state receive extremely high rainfal

Description : Observe the given map. Which one of the following statement is NOT true about the shaded state indicated on the map? (1) Society predominantly follows right of female ultimogeniture (2) The state is ... a major producer of potatoes in India (4) Some parts of the state receive extremely high rainfal

Last Answer : (3) The state is a major producer of potatoes in India

. Match List I (Original Rock) with List II (Metamorphic Rock) and select the correct answer using the code given below: L i st I L i st I I (Or i gi nal Rock ) (Met amor phi c Rock ) A. Granite I. Diamond B. Coal II. Marble C. Limestone III. Slate D. Shale IV. Gneiss (1) A-III, B-IV, C-II, D-I (2) A-III, B-II, C-IV, D-I (3) A-IV, B-II, C-I, D-III (4) A-IV, B-I, C-II, D-III

Description : . Match List I (Original Rock) with List II (Metamorphic Rock) and select the correct answer using the code given below: L i st I L i st I I (Or i gi nal Rock ) (Met amor phi c Rock ) A. Granite I. Diamond B. Coal II. Marble C. ... II, C-IV, D-I (3) A-IV, B-II, C-I, D-III (4) A-IV, B-I, C-II, D-III

Last Answer : (4) A-IV, B-I, C-II, D-III

River Alaknanda forms confluences (Prayags) in Uttrakhand. Match the codes given in Figure with Table (Prayags) and select the correct answer using the code given below. Figure Table (Pr ayags) D A L A K N A N D A C B A I. Karn Prayag II. Rudra Prayag III. Nand Prayag IV. Vishnu Prayag

Description : River Alaknanda forms confluences (Prayags) in Uttrakhand. Match the codes given in Figure with Table (Prayags) and select the correct answer using the code given below. Figure Table (Pr ayags) D A L A K N A N D A C B A I. Karn Prayag II. Rudra Prayag III. Nand Prayag IV. Vishnu Prayag

Last Answer : (1) A-II, B-I, C-III, D-IV

Which of the following statements are correct? I. Rann of Kachchh is formed by the recession of the sea. II. Kuchaman, Sambhar and Didwana are salt water lakes. III. The land to the east of Aravallis is known as Bagar. IV. The fertile flood plains formed by small streams in Rajasthan are known as Rohi. (1) I, II and IV (2) I, III and IV (3) II, III and IV (4) I, II, III and IV

Description : Which of the following statements are correct? I. Rann of Kachchh is formed by the recession of the sea. II. Kuchaman, Sambhar and Didwana are salt water lakes. III. The land to the east of Aravallis is known as Bagar. IV. The ... II and IV (2) I, III and IV (3) II, III and IV (4) I, II, III and IV

Last Answer : (1) I, II and IV

Match List I (Layers of Atmosphere) and List II (Characteristics) and select the correct answer using the code given below. L ist I L i st I I (L ayer of (Char acter ist ics) At mospher e) A. Ionosphere I. Contains Ozone B. Stratosphere II. Reflects radio Waves C. Exosphere III. Fall in Temperature D. Troposphere IV. Extremely low air density (1) A-II, B-III, C-IV, D-I (2) A-II, B-I, C-IV, D-III (3) A-II, B-III, C-I, D-IV (4) A-III, B-I, C-IV, D-II

Description : Match List I (Layers of Atmosphere) and List II (Characteristics) and select the correct answer using the code given below. L ist I L i st I I (L ayer of (Char acter ist ics) At mospher e) A. Ionosphere I. Contains Ozone B. ... D-III (3) A-II, B-III, C-I, D-IV (4) A-III, B-I, C-IV, D-II

Last Answer : 2) A-II, B-I, C-IV, D-III

St at em en t I : The French used forced labour in Indo-China for building canals. St at ement I I : Vietnam became a major exporter of rice in the world

Description : St at em en t I : The French used forced labour in Indo-China for building canals. St at ement I I : Vietnam became a major exporter of rice in the world

Last Answer : 4. Both Statements are true, but Statement II does not provide explanation of Statement I.

St at ement I : The Spanish conquest of America was not a conventional military conquest. St at ement I I : One of the most powerful weapon was the spread of smallpox.

Description : St at ement I : The Spanish conquest of America was not a conventional military conquest. St at ement I I : One of the most powerful weapon was the spread of smallpox.

Last Answer : 3. Both Statements are true, and Statement II provides explanation of Statement I

St at ement I : Mahatma Gandhi wished everyone had clothes to wear. St at emen t I I : He wanted everyone to wear the single loin cloth as he did.

Description : St at ement I : Mahatma Gandhi wished everyone had clothes to wear. St at emen t I I : He wanted everyone to wear the single loin cloth as he did.

Last Answer : I. The Chinese introduced printing.

St at em en t I : Cricket emerged as a colonial game. St at emen t I I : Cricket was started in England. Ans. (3) Sol. Cricket came to India from England as India was a colony

Description : St at em en t I : Cricket emerged as a colonial game. St at emen t I I : Cricket was started in England. Ans. (3) Sol. Cricket came to India from England as India was a colony

Last Answer : III. The Chinese developed printing to facilitate their expanding trade.

St at ement I : Shifting cultivation was widely prevalent in different parts of India in the 19th century. St at ement I I : More and more people took to shifting cultivation when forest laws were enacted.

Description : St at ement I : Shifting cultivation was widely prevalent in different parts of India in the 19th century. St at ement I I : More and more people took to shifting cultivation when forest laws were enacted.

Last Answer : 1. Statement I is true, Statement II is false.

St at em ent I : The Forest Act of 1878 categorized some forests as ‘reserved forests'. Statement I I : They were considered the best forests for people's use.

Description : St at em ent I : The Forest Act of 1878 categorized some forests as ‘reserved forests'. Statement I I : They were considered the best forests for people's use.

Last Answer : 1. Statement I is true, Statement II is false.

St at ement I : During the years of the Great Depression the economic crisis was worse in Germany. St at em en t I I : The President of the Weimar Republic had the power to impose emergency.

Description : St at ement I : During the years of the Great Depression the economic crisis was worse in Germany. St at em en t I I : The President of the Weimar Republic had the power to impose emergency.

Last Answer : 4. Both Statements are true, but Statement II does not provide explanation of Statement I.

Which of the following statements are correct? I. In the beginning Bombay was under the Portuguese control. II. Control of Bombay passed onto the French in the 17th century. III. The Marathas replaced the French in Bombay. IV. Bombay became the capital of the Presidency in early 19th century. (1) I, II and IV (2) I and IV (3) I, II and III (4) II, III and IV

Description : Which of the following statements are correct? I. In the beginning Bombay was under the Portuguese control. II. Control of Bombay passed onto the French in the 17th century. III. The Marathas replaced the French in Bombay. IV. Bombay ... , II and IV (2) I and IV (3) I, II and III (4) II, III and IV

Last Answer : (2) I and IV

Which of the following statements about Liberals in 19th century Europe are correct? I. They favoured the Catholic Church. II. They opposed dynastic rule with unlimited power. III. They were democrats. IV. They did not want any voting rights for women. (1) I, II and III (2) I, II and IV (3) II and IV (4) III and IV

Description : Which of the following statements about Liberals in 19th century Europe are correct? I. They favoured the Catholic Church. II. They opposed dynastic rule with unlimited power. III. They were democrats. IV. They did not want any voting ... I, II and III (2) I, II and IV (3) II and IV (4) III and IV

Last Answer : (3) II and IV

. Arrange the developments related to European history in a chronological sequence. I. Napoleon invaded Italy. II. Unification of Italy. III. Unification of Germany. IV. Vienna Settlement. (1) I, III, II and IV (2) I, II, IV and III (3) I, IV, II and III (4) I, II, III and IV

Description : . Arrange the developments related to European history in a chronological sequence. I. Napoleon invaded Italy. II. Unification of Italy. III. Unification of Germany. IV. Vienna Settlement. (1) I, III, II and IV (2) I, II, IV and III (3) I, IV, II and III (4) I, II, III and IV

Last Answer : (3) I, IV, II and III

A source produces sound waves under water. Waves travel through water and then into air. Which of the following statements about the frequency (f) and the wavelength () is correct and sound passes from water to air? (1) f remains unchanged but  decreases. (2) f remains unchanged but  increases. (3)  remains unchanged but f decreases. (4)  remains unchanged but f increases.

Description : A source produces sound waves under water. Waves travel through water and then into air. Which of the following statements about the frequency (f) and the wavelength () is correct and sound passes from ... increases. (3)  remains unchanged but f decreases. (4)  remains unchanged but f increases.

Last Answer : 3)  remains unchanged but f decreases.

or more substances. Which of the following is a solution? (l) Milk (2) Smoke (3) Brass (4) Face Cream

Description : or more substances. Which of the following is a solution? (l) Milk (2) Smoke (3) Brass (4) Face Cream

Last Answer : (3) Brass

You discover a new species of a plant. You also discover that it produces motile sperms and dominant generation has diploid cells. It belongs to (1) Bryophyte (2) Angiosperm (3) Gymnosperm (4) Pteridophyte

Description : You discover a new species of a plant. You also discover that it produces motile sperms and dominant generation has diploid cells. It belongs to (1) Bryophyte (2) Angiosperm (3) Gymnosperm (4) Pteridophyte

Last Answer : 4) Pteridophyte