The light from the Sun reaches the Earth in about— (1) 8 seconds (2) 8 minutes (3) 10 seconds (4) 10 minutes

The light from the Sun reaches the Earth in about— (1) 8 seconds (2) 8 minutes (3) 10 seconds (4) 10 minutes
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(2) 8 minutes Explanation: Light travels at 186,000 miles a second at the Earth is 93 million miles to Sun on average. This works out as 8.33 minutes for light from the Sun to reach Earth. On average, it takes energy between 10,000 and 170,000 years to leave the sun's interior and then be emitted from the surface as light. Sunlight, in the broad sense, is the total frequency spectrum of electromagnetic radiation given off by the Sun, particularly infrared, visible, and ultraviolet light. On Earth, sunlight is filtered through the Earth's atmosphere, and is obvious as daylight when the Sun is above the horizon.
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The light from the Sun reaches the Earth in about— (1) 8 seconds (2) 8 minutes (3) 10 seconds (4) 10 minutes

Description : The light from the Sun reaches the Earth in about— (1) 8 seconds (2) 8 minutes (3) 10 seconds (4) 10 minutes

Last Answer : 8 minutes

Light from the nearest star (other than the sun) reaches the earth in (a) 4.2 seconds (b) 42 seconds (c) 4.2 years (d) 42 years

Description : Light from the nearest star (other than the sun) reaches the earth in (a) 4.2 seconds (b) 42 seconds (c) 4.2 years (d) 42 years

Last Answer : Ans:(c)

Light from the Sun reaches us in nearly (1) 2 minutes (2) 4 minutes (3) 8 minutes (4) 16 minutes

Description : Light from the Sun reaches us in nearly (1) 2 minutes (2) 4 minutes (3) 8 minutes (4) 16 minutes

Last Answer : (3) 8 minutes Explanation: The sun's light takes about 8 minutes to reach the Earth after it has been emitted from the sun's surface. The time it takes for light to reach planets in our Solar System ... Way, which is our galaxy) varies from about 3 minutes for Mercury, to about 5.3 hours for Pluto

Light from the Sun reaches us in nearly (1) 2 minutes (2) 4 minutes (3) 8 minutes (4) 16 minutes

Description : Light from the Sun reaches us in nearly (1) 2 minutes (2) 4 minutes (3) 8 minutes (4) 16 minutes

Last Answer : (3) 8 minutes Explanation: The sun's light takes about 8 minutes to reach the Earth after it has been emitted from the sun's surface. The time it takes for light to reach planets in our Solar System ... Way, which is our galaxy) varies from about 3 minutes for Mercury, to about 5.3 hours for Pluto.

Light from the Sun reaches us in nearly (1) 8 min (2) 2 min (3) 6 min (4) 4 min

Description : Light from the Sun reaches us in nearly (1) 8 min (2) 2 min (3) 6 min (4) 4 min

Last Answer : (1) 8 min Explanation: The sun's light takes about 8 minutes to reach the Earth after it has been emitted from the sun's surface. The time it takes for light to reach planets in our Solar System varies from about 3 minutes for Mercury, to about 5.3 hours for Pluto.

Moon light reaches to earth in------seconds? A. 0.3 seconds B. 1.3 seconds (Answer) C. 2.3 seconds D. 3.3 seconds

Description : Moon light reaches to earth in------seconds? A. 0.3 seconds B. 1.3 seconds (Answer) C. 2.3 seconds D. 3.3 seconds

Last Answer : B. 1.3 seconds (Answer)

Light reaches earth from sun in?

Description : Light reaches earth from sun in?

Last Answer : 8 minutes 20semnds (500 seconds)

The light of sun reaches to the surface of earth in

Description : The light of sun reaches to the surface of earth in

Last Answer : 8 minutes 16.6 sec

Light from the Sun reaches us in nearly (1) 8 min (2) 2 min (3) 6 min (4) 4 min

Description : Light from the Sun reaches us in nearly (1) 8 min (2) 2 min (3) 6 min (4) 4 min

Last Answer : 8 min

Twelve flags stand equidistant along the track at the stadium. The runners start at the first flag. A runner reaches the eighth flag 8 seconds after he starts. If he runs at an even speed, how many seconds does he need altogether to reach the twelfth flag? -Riddles

Description : Twelve flags stand equidistant along the track at the stadium. The runners start at the first flag. A runner reaches the eighth flag 8 seconds after he starts. If he runs at an even speed, how many seconds does he need altogether to reach the twelfth flag? -Riddles

Last Answer : Not 12 seconds. There are 7 segments from the first flag tot the eighth, and 11 from the first to the twelfth. He runs each segment in 8/7 seconds; therefore, 11 segments take 88/7= 12 4/7 seconds.

True statements about visual adaptation include: a. light adaptation takes longer than dark adaptation b. dark adaptation reaches its maximum in about 20 minutes c. in dark adapted eye, a higher intensity of light is required to stimulate cones than rodsd. people who wear red goggles in the light adapt quicker in the dark than those who do not wear them

Description : True statements about visual adaptation include: a. light adaptation takes longer than dark adaptation b. dark adaptation reaches its maximum in about 20 minutes c. in dark adapted eye, a higher intensity ... wear red goggles in the light adapt quicker in the dark than those who do not wear them

Last Answer : in dark adapted eye, a higher intensity of light is required to stimulate cones than rods

A ball thrown by one player reaches the other in 2 seconds. The maximum height attained by the ball above the point of projection will be :- `(g = 10

Description : A ball thrown by one player reaches the other in 2 seconds. The maximum height attained by the ball above the point of projection will be :- `(g = 10

Last Answer : A ball thrown by one player reaches the other in 2 seconds. The maximum height attained by the ball above the point of ... B. 7.5 m C. 5 m D. 2.5 m

Six bells commence tolling together and toll at intervals of 2, 4, 6, 8, 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together? A.8 B.11 C.13 D.16 E.None of theseSix bells commence tolling together and toll at intervals of 2, 4, 6, 8, 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together? A.8 B.11 C.13 D.16 E.None of these

Description : Six bells commence tolling together and toll at intervals of 2, 4, 6, 8, 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together? A.8 B.11 C.13 D.16 E.None of these

Last Answer : Answer – D (16) Explanation – L.C.M. of 2, 4, 6, 8, 10, 12 is 120.So, the bells will toll together after every 120 seconds, i.e, 2 minutes.In 30 minutes, they will toll together 30/2 + 1 = 16

Six bells commencing tolling together toll at intervals of 2, 3, 6, 8 , 10 and 12 seconds respectively.In 30 minutes how many times do they toll together?

Description : Six bells commencing tolling together toll at intervals of 2, 3, 6, 8 , 10 and 12 seconds respectively.In 30 minutes how many times do they toll together?

Last Answer : Ans 1. L.C.M of 2, 4, 6, 8, 10 and 12 is 120. so, the bells will toll together after 120 seconds i.e. 2 minutes . In 30 minutes the bells toll together 30/2 + 1 times i.e. times.

What is the source of the electromagnetic energy that reaches earth from the sun?

Description : What is the source of the electromagnetic energy that reaches earth from the sun?

Last Answer : the solar panals

What The amount of the sun energy that reaches the earth?

Description : What The amount of the sun energy that reaches the earth?

Last Answer : Need answer

Heat from the sun reaches earth by the process of – (1) Conduction (2) Convection (3) Radiation (4) All of the above

Description : Heat from the sun reaches earth by the process of – (1) Conduction (2) Convection (3) Radiation (4) All of the above

Last Answer : (3) Radiation Explanation: In physics, radiation is a process in which energetic particles or energetic waves travel through vacuum, or through mattercontaining media that are not required for their propagation.

Heat from the Sun reaches the Earth by (1) Reflection (2) Conduction (3) Radiation (4) Convection

Description : Heat from the Sun reaches the Earth by (1) Reflection (2) Conduction (3) Radiation (4) Convection

Last Answer : (3) Radiation Explanation: The radiation (light, heat, etc.) travels through the intervening 150,000,000 kilometers in 8 minutes. Radiation is a process in which energetic particles or energetic waves ... waves or sound waves, are usually not considered to be forms of "radiation" in this sense.

What happen to the heat energy that reaches Earth from the sun?

Description : What happen to the heat energy that reaches Earth from the sun? 

Last Answer : Ans: The layer of air which surrounds the Earth acts as an insulating layer. Carbon dioxide gas in the atmosphere absorbs the heat from the Sun and keeps it in thereby maintaining a specific temperature for life on Earth.

Heat from the sun reaches the Earth by: w) conduction x) convection y) radiation z) none of the above

Description : Heat from the sun reaches the Earth by: w) conduction x) convection y) radiation z) none of the above

Last Answer : ANSWER: Y -- RADIATION

Heat from the sun reaches earth by the process of (1) Conduction (2) Convection (3) Radiation (4) All of the above

Description : Heat from the sun reaches earth by the process of (1) Conduction (2) Convection (3) Radiation (4) All of the above

Last Answer : Radiation

Heat from the Sun reaches the Earth by (1) Reflection (2) Conduction (3) Radiation (4) Convection

Description : Heat from the Sun reaches the Earth by (1) Reflection (2) Conduction (3) Radiation (4) Convection

Last Answer : Radiation

The distance from the Earth to the Sun is about 100 million miles. The speed of light is 186,000 miles per second, and light takes eight minutes to reach the Earth from the Sun. Let's say the Sun rose at 6am this morning, and that by some freak of physics the speed of light is suddenly doubled to 372,000 miles a second.What time will the Sun rise tomorrow? -Riddles

Description : The distance from the Earth to the Sun is about 100 million miles. The speed of light is 186,000 miles per second, and light takes eight minutes to reach the Earth from the Sun. Let's say the ... of light is suddenly doubled to 372,000 miles a second.What time will the Sun rise tomorrow? -Riddles

Last Answer : 6am again. After all, what diffrence does the speed of light make to the answer? It's irrelevant- only the speed of the roation of the Earth matters here.

How many minutes does it take for light to come from sun to earth ?

Description : How many minutes does it take for light to come from sun to earth ?

Last Answer : : It takes time for light to come from the sun to the earth-- 8 minutes 20 seconds

Why is the distace between earth and the sun measured in light minutes and the distance between neptune and the sun measured in light hours?

Description : Why is the distace between earth and the sun measured in light minutes and the distance between neptune and the sun measured in light hours?

Last Answer : Because it only takes 8 minutes for sunlight to reach Earth, butit takes 4 hours to reach Neptune.

To within a half minute, how many minutes does it take for light to travel from the sun to the Earth?

Description : To within a half minute, how many minutes does it take for light to travel from the sun to the Earth? 

Last Answer : ANSWER: 9-1/2 MINUTES (accept: 9 to 10 minutes)

I begin the earth and end the eclipse, I occur in seconds and minutes, but never in a hand although I am in a lifetime. What am I? -Riddles

Description : I begin the earth and end the eclipse, I occur in seconds and minutes, but never in a hand although I am in a lifetime. What am I? -Riddles

Last Answer : Letter E.

“If you drilled a tunnel straight through the Earth and jumped in, it would take you 42 minutes 12 seconds to get to the other side.”

Description : “If you drilled a tunnel straight through the Earth and jumped in, it would take you 42 minutes 12 seconds to get to the other side.” 

Last Answer : The idea is that you would accelerate towards the centre through the effects of gravity, and be decelerated by gravity when approaching the other side. Unfortunately this is not very practical, and along the way, ... that are believed to exceed 6,000 degrees C, about that of the surface of the sun.

The velocity of a ball tossed vertically into the air is expressed by the equation v(t) = -32t + 4, where t is given in seconds. Give the velocity of the ball when it reaches its highest point.

Description : The velocity of a ball tossed vertically into the air is expressed by the equation v(t) = -32t + 4, where t is given in seconds. Give the velocity of the ball when it reaches its highest point. 

Last Answer : ANSWER: 0

If a train runs at 40 km/hour, it reaches its destination late by 11 minutes. But if it runs at 50 km/hour, it is late by 5 minutes only. The correct time (in minutes) for the train to complete the journey is? a) 13 b) 15 c) 19 d) 21 e) None of these

Description : If a train runs at 40 km/hour, it reaches its destination late by 11 minutes. But if it runs at 50 km/hour, it is late by 5 minutes only. The correct time (in minutes) for the train to complete the journey is? a) 13 b) 15 c) 19 d) 21 e) None of these

Last Answer : If the distance be x km, then x/40-x/50=6/60 x/4-x/5=1 x=20 km. Required time = (20/40) hour – 11 minutes = (1/2×60-11) minutes = 19 minutes Answer: c)

Quantity of fresh air required for a man is _____ A. 1000 cubic feet of air for every 20 minutes B. 1000 cubic feet of air for every 20 seconds C. 1000 cubic feet of air for every 10 minutes D. 1000 cubic feet of air for every 10 seconds

Description : Quantity of fresh air required for a man is _____ A. 1000 cubic feet of air for every 20 minutes B. 1000 cubic feet of air for every 20 seconds C. 1000 cubic feet of air for every 10 minutes D. 1000 cubic feet of air for every 10 seconds

Last Answer : ANSWER: A

Quantity of fresh air required for a man is - (1) 1000 cubic feet of air for every 20 minutes (2) 1000 cubic feet of air for every 20 seconds (3) 1000 cubic feet of air for every 10 minutes (4) 1000 cubic feet of air for every 10 seconds

Description : Quantity of fresh air required for a man is - (1) 1000 cubic feet of air for every 20 minutes (2) 1000 cubic feet of air for every 20 seconds (3) 1000 cubic feet of air for every 10 minutes (4) 1000 cubic feet of air for every 10 seconds

Last Answer : (1) 1000 cubic feet of air for every 20 minutes Explanation: Breathing sixteen times every minute an average volume of air amounting to 30 cubic inches, we find that the expired air amounts to no less than 17 ... fresh air contains from 0.03 to 0.04 per cent of carbonic acid gas, or at the most, .

What is the time of useful consciousness at 20,000 feet (moderate activity)? a. 5 minutes b. 1 minute c. 10 minutes d. 30 seconds

Description : What is the time of useful consciousness at 20,000 feet (moderate activity)? a. 5 minutes b. 1 minute c. 10 minutes d. 30 seconds

Last Answer : a. 5 minutes

What is the time of useful consciousness at 20,000 feet (moderate activity)? a. 5 minutes b. 1 minute c. 10 minutes d. 30 seconds

Description : What is the time of useful consciousness at 20,000 feet (moderate activity)? a. 5 minutes b. 1 minute c. 10 minutes d. 30 seconds

Last Answer : a. 5 minutes

Quantity of fresh air required for a man is (1) 1000 cubic feet of air for every 20 minutes (2) 1000 cubic feet of air for every 20 seconds (3) 1000 cubic feet of air for every 10 minutes (4) 1000 cubic feet of air for every 10 seconds

Description : Quantity of fresh air required for a man is (1) 1000 cubic feet of air for every 20 minutes (2) 1000 cubic feet of air for every 20 seconds (3) 1000 cubic feet of air for every 10 minutes (4) 1000 cubic feet of air for every 10 seconds

Last Answer :  1000 cubic feet of air for every 20 minutes

The water of the Luni river is (a) Fresh (b) Fresh in upper reaches and salty in the lower reaches (c) Salty (d) Fresh in rainy season and salty in other seasons

Description : The water of the Luni river is (a) Fresh (b) Fresh in upper reaches and salty in the lower reaches (c) Salty (d) Fresh in rainy season and salty in other seasons

Last Answer : Ans: (b)

Rainfall from the south-west monsoon reaches: (a) Lahauland Spiti (b) Ladakh (c) Tamil Nadu (d) Delta region of Mahanadi

Description : Rainfall from the south-west monsoon reaches: (a) Lahauland Spiti (b) Ladakh (c) Tamil Nadu (d) Delta region of Mahanadi

Last Answer : Ans: (d)

The Brahmaputra, Irrawady and Mekong rivers originate in Tibet and flow through narrow and parallel mountain ranges in their upper reaches: Of these rivers, Brahmaputra makes a "U" turn in its course to flow into India. This "U" turn is due to [CSAT 2011] (a) Uplift of folded Himalayan series (b) Syntaxial bending of geologically young Himalayas (c) Geo-tectonic disturbance in the tertiary folded mountain chains (d) Both (a) and (b) above

Description : The Brahmaputra, Irrawady and Mekong rivers originate in Tibet and flow through narrow and parallel mountain ranges in their upper reaches: Of these rivers, Brahmaputra makes a "U" turn in its course to ... Geo-tectonic disturbance in the tertiary folded mountain chains (d) Both (a) and (b) above

Last Answer : Ans: (d)

What is a neutron star which a Emits radiation that reaches the earth as radio waves and flashes of visible light?

Description : What is a neutron star which a Emits radiation that reaches the earth as radio waves and flashes of visible light?

Last Answer : pulsar

When does the sun reaches its maximum angular distance from the equator?

Description : When does the sun reaches its maximum angular distance from the equator?

Last Answer : At the solstice

When our sun reaches the end of its red giant phase, it will turn into a------? A. Supernova B. White Dwarf (Answer) C. Black Hole D. Neutron Star

Description : When our sun reaches the end of its red giant phase, it will turn into a------? A. Supernova B. White Dwarf (Answer) C. Black Hole D. Neutron Star

Last Answer : B. White Dwarf (Answer)

Which of the following is not caused by atmospheric refraction of light? (1) Sun appearing red at sunset (2) Twinkling of stars at night (3) Sun appearing higher in the sky than it actually is (4) Sun becoming visible two or three minutes before actual sunrise

Description : Which of the following is not caused by atmospheric refraction of light? (1) Sun appearing red at sunset (2) Twinkling of stars at night (3) Sun appearing higher in the sky than it actually is (4) Sun becoming visible two or three minutes before actual sunrise

Last Answer : (3) Sun appearing higher in the sky than it actually is Explanation: The twinkling of stars and variation in size of the Sun are due to atmospheric refraction of light. Besides, refraction is also ... higher or lower in the sky due to the changing position of the Earth relative to the Sun.

Which of the following is not caused by atmospheric refraction of light ? (1) Sun appearing red at sunset (2) Twinkling of stars at night (3) Sun appearing higher in the sky than it actually is (4) Sun becoming visible two or three minutes before actual sunrise

Description : Which of the following is not caused by atmospheric refraction of light ? (1) Sun appearing red at sunset (2) Twinkling of stars at night (3) Sun appearing higher in the sky than it actually is (4) Sun becoming visible two or three minutes before actual sunrise

Last Answer : Sun appearing higher in the sky than it actually is

The sun rises in Arunachal Pradesh two hours before it does in Dwaraka in Gujarat. This is because the former is (a) higher in elevation than Dwaraka (b) situated further north than Dwaraka (c) situated further east (about 30º longitude) than Dwaraka (d) situated about 30 º east of Dwaraka and the earth rotates from west to east

Description : The sun rises in Arunachal Pradesh two hours before it does in Dwaraka in Gujarat. This is because the former is (a) higher in elevation than Dwaraka (b) situated further north than Dwaraka (c) situated ... than Dwaraka (d) situated about 30 º east of Dwaraka and the earth rotates from west to east

Last Answer : Ans: (d)

Spring tides occur when : (1) the moon, the sun and the earth are in the same line (2) the sun is closest to earth (3) the moon is farthest from earth (4) the earth is at right angles with the sun and the moon

Description : Spring tides occur when : (1) the moon, the sun and the earth are in the same line (2) the sun is closest to earth (3) the moon is farthest from earth (4) the earth is at right angles with the sun and the moon

Last Answer : (1) the moon, the sun and the earth are in the same line Explanation: The combined tide raising forces of the Moon and the Sun are at their greatest effect when the Sun and the Moon are in line with the Earth. World Geography (Set: 01)

Mean difference between The Sun and The Earth is - (1) 1 A.U. (2) 0.5 A.U. (3) 0.25 A.U. (4) 0.75 A.U.

Description : Mean difference between The Sun and The Earth is - (1) 1 A.U. (2) 0.5 A.U. (3) 0.25 A.U. (4) 0.75 A.U.

Last Answer : (1) 1 A.U. Explanation: One astrnomical unit is the approximate mean distance between the Earth and Sun. It's about 93 million miles.

Solar eclipse occurs when – (1) the Moon does not lie on the line joining the Sun and the Earth (2) the Moon comes between the Sun and the Earth (3) the Sun comes between the Moon and the Earth (4) the Earth comes between the Moon and the Sun

Description : Solar eclipse occurs when – (1) the Moon does not lie on the line joining the Sun and the Earth (2) the Moon comes between the Sun and the Earth (3) the Sun comes between the Moon and the Earth (4) the Earth comes between the Moon and the Sun

Last Answer : (2) the Moon comes between the Sun and the Earth Explanation: A solar eclipse is a type of eclipse that occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks ("occults") the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction.

Why are winters more severe in Southern Hemisphere than in Northern Hemisphere? (1) Earth is titled towards the sun in the Northern Hemisphere (2) Northern Hemisphere receives more sunlight (3) Because of more iceberg activity in Southern Hemisphere (4) Southern Hemisphere is less inhabited

Description : Why are winters more severe in Southern Hemisphere than in Northern Hemisphere? (1) Earth is titled towards the sun in the Northern Hemisphere (2) Northern Hemisphere receives more sunlight (3) Because of more iceberg activity in Southern Hemisphere (4) Southern Hemisphere is less inhabited

Last Answer : (1) Earth is titled towards the sun in the Northern Hemisphere Explanation: The winter in the Southern Hemisphere occurs when the Northern hemisphere is tilted more toward the Sun. From the perspective of an ... the Earth, the winter Sun has a lower maximum altitude in the sky than the summer Sun.

When does solar eclipse take place? (1) When the sun is between the moon and earth (2) When the earth is between the moon and sun (3) When the moon is between the sun and earth (4) When the moon does not lie on the line joining the sun and earth

Description : When does solar eclipse take place? (1) When the sun is between the moon and earth (2) When the earth is between the moon and sun (3) When the moon is between the sun and earth (4) When the moon does not lie on the line joining the sun and earth

Last Answer : (3) When the moon is between the sun and earth Explanation: A solar eclipse occurs when the moon gets between Earth and the sun, and the moon casts a shadow over Earth. A solar eclipse can ... moon, when the moon passes directly between the sun and Earth and its shadows fall upon Earth's surface.

The tides in the sea are primarily due to – (1) the atmospheric effect of the Earth (2) the gravitational effect of Venus on the Earth (3) the gravitational effect of the Sun on the Earth (4) the gravitational effect of the Moon on the Earth

Description : The tides in the sea are primarily due to – (1) the atmospheric effect of the Earth (2) the gravitational effect of Venus on the Earth (3) the gravitational effect of the Sun on the Earth (4) the gravitational effect of the Moon on the Earth

Last Answer : Explanation: A tide is the periodic rising and falling of Earth's ocean surface caused mainly by the gravitational pull of the Moon acting on the oceans. The height of tides varies somewhat with the phases ... higher because the Sun's tidal force adds to the Moon's. This is called "spring tide".