We receive sunlight on earth surface. What type of light beams are these?

We receive sunlight on earth surface. What type of light beams are these?
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An optically plane surface reflects a beam of light – (1) as a parallel beam in one direction (2) as diffused beams in all d rections (3) as parallel beams in all direactions (4) as a diffused beam in one direction

Description : An optically plane surface reflects a beam of light – (1) as a parallel beam in one direction (2) as diffused beams in all d rections (3) as parallel beams in all direactions (4) as a diffused beam in one direction

Last Answer : (1) as a parallel beam in one direction Explanation: An optically plane surface reflects a beam of light as a parallel beam in one direction. The set of incident rays are reflected as a set ... its reflecting surface is smooth. This type of reflection of a set of rays is called Specular Reflection.

An optically plane surface reflects a beam of light (1) as a parallel beam in one direction (2) as diffused beams in all directions (3) as parallel beams in all directions (4) as a diffused beam in one direction

Description : An optically plane surface reflects a beam of light (1) as a parallel beam in one direction (2) as diffused beams in all directions (3) as parallel beams in all directions (4) as a diffused beam in one direction

Last Answer : as a parallel beam in one direction

What will happen to a plant if it does not receive enough sunlight?

Description : What will happen to a plant if it does not receive enough sunlight?

Last Answer : It will die because of to much heat, plants need lots of waterand sunshine to grow, but if plants get to much they will die.If it does not get enough light to manufacture its nutrients, itwill fail to flourish and eventually die.

Iluminance of `2.4 xx 10^(5)lm//m^(2)` of the surface is produced by sunlight falling normally on the surface of the earth. The distance of the earth

Description : Iluminance of `2.4 xx 10^(5)lm//m^(2)` of the surface is produced by sunlight falling normally on the surface of the earth. The distance of the earth

Last Answer : Iluminance of `2.4 xx 10^(5)lm//m^(2)` of the surface is produced by sunlight ... Calculate the luminous intensity and luminous flux of the sun.

The nurse advises the patient undergoing photodynamic therapy (PDT) for macular degeneration to avoid exposure to direct sunlight or bright lights for a) the first five days after the procedure. Photodynamic therapy includes the use of verteporfin, a light-activated dye. The dye within the blood vessels near the surface of the skin could become activated with exposure to strong light, such as sunlight or bright lights. Ordinary indoor light is not a problem. The patient should be counseled to wear protective clothing, such as long-sleeved shirts, sunglasses, and wide-brimmed hats, if the patient has to go outdoors during daylight hours in the first five days post-treatment. Inadvertent sunlight exposure can lead to severe blistering of the skin and sunburn.

Description : The nurse advises the patient undergoing photodynamic therapy (PDT) for macular degeneration to avoid exposure to direct sunlight or bright lights for a) the first five days after the procedure. ... should avoid exposure to direct sunlight or bright lights for the first five days post-treatment.

Last Answer : a) the first five days after the procedure. Photodynamic therapy includes the use of verteporfin, a light-activated dye. The dye within the blood vessels near the surface of the skin could ... days post-treatment. Inadvertent sunlight exposure can lead to severe blistering of the skin and sunburn.

What refers to the heating of the earth’s atmosphere not caused by direct sunlight but by infrared light radiated by the surface and absorbed mainly by atmospheric carbon dioxide?  A. Greenhouse effect  B. Global warming  C. Thermal rise effect  D. Ozone effect

Description : What refers to the heating of the earth’s atmosphere not caused by direct sunlight but by infrared light radiated by the surface and absorbed mainly by atmospheric carbon dioxide?  A. Greenhouse effect  B. Global warming  C. Thermal rise effect  D. Ozone effect

Last Answer : Greenhouse effect

Light has no mass so it also has no energy according to Einstein, but how can sunlight warm the earth without energy? -Physics

Description : Light has no mass so it also has no energy according to Einstein, but how can sunlight warm the earth without energy? -Physics

Last Answer : Light indeed carries energy and accomplishes this without having any mass. The Einstein equation that you are probably referring to is E = mc2. This equation is actually a special case of the ... their energy from their momentum. Light indeed carries energy via its momentum despite having no mass.

Stars twinkle but planets do not twinkle because – (1) they emit light of a constant intensity (2) their distance from the earth does not change with time (3) they are very far away from the earth resulting in decrease in intensity of light (4) they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable

Description : Stars twinkle but planets do not twinkle because - (1) they emit light of a constant intensity (2) their distance from the earth does not change with time (3) they are very far away ... and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable

Last Answer : (4) they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable Explanation: Eris is the most massive and second-largest ... orbiting the Sun, and the largest known body in the Solar System not visited by a spacecraft.

Stars twinkle but planets do not twinkle because (1) they emit light of a constant intensity (2) their distance from the earth does not change with time (3) they are very far away from the earth resulting in decrease in intensity of light (4) they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable

Description : Stars twinkle but planets do not twinkle because (1) they emit light of a constant intensity (2) their distance from the earth does not change with time (3) they are very far away from ... and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable 

Last Answer : they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable

Which multiplexing technique involves signals composed of light beams? A) FDM B) TDM C) WDM D) none of the above

Description : Which multiplexing technique involves signals composed of light beams? A) FDM B) TDM C) WDM D) none of the above

Last Answer : WDM

Beams of uniform strength are preferred to those of uniform section because these are economical for (A) Large spans (B) Heavy weights (C) Light weights (D) Short spans

Description : Beams of uniform strength are preferred to those of uniform section because these are economical for (A) Large spans (B) Heavy weights (C) Light weights (D) Short spans

Last Answer : (A) Large spans

Pick up the true statement from the following: (A) Plain ceiling provides the best property diffusing light (B) In the absence of beams, it is easier to install piping (C) In the absence of beams, it is easier to paint (D) All the above

Description : Pick up the true statement from the following: (A) Plain ceiling provides the best property diffusing light (B) In the absence of beams, it is easier to install piping (C) In the absence of beams, it is easier to paint (D) All the above

Last Answer : Answer: Option D

What causes the Moon’s phases? A. The Sun lights up only one half of the Moon and as the Moon orbits the Earth we can sometimes see the unlit side of the Moon? B. The Sun lights up only one half of the Moon and as the Sun orbits the Earth we can sometimes see the unlit side of the Moon. C. The Earth’s shadow falls on the Moon, blocking the sunlight. D. The Moon’s shadow falls on the Earth, blocking the sunlight.

Description : What causes the Moon's phases? A. The Sun lights up only one half of the Moon and as the Moon orbits the Earth we can sometimes see the unlit side of the Moon? B. The Sun lights up only ... falls on the Moon, blocking the sunlight. D. The Moon's shadow falls on the Earth, blocking the sunlight.

Last Answer : C. The Earth’s shadow falls on the Moon, blocking the sunlight.

Why is don't all areas on earth and surface receive the same amount of radiation because?

Description : Why is don't all areas on earth and surface receive the same amount of radiation because?

Last Answer : What is the answer ?

Primary purpose is to restrict movement from the surface layers. A. Air. C) Sunlight. B. Water. D) Dust

Description : Primary purpose is to restrict movement from the surface layers. A. Air. C) Sunlight. B. Water. D) Dust

Last Answer : Water

The Castigliano's second theorem can be used to compute deflections (A) In statically determinate structures only (B) For any type of structure (C) At the point under the load only (D) For beams and frames only

Description : The Castigliano's second theorem can be used to compute deflections (A) In statically determinate structures only (B) For any type of structure (C) At the point under the load only (D) For beams and frames only

Last Answer : (B) For any type of structure

Pick up the correct statement from the following: (A) In a king post truss, principal rafter and tie beams are jointed together with a bridle joint (B) Joint between the principal rafter and the king post is made by making tenon and mortise respectively (C) Joint between strut and king post, is generally of mortise and tenon type (D) All the abov

Description : Pick up the correct statement from the following: (A) In a king post truss, principal rafter and tie beams are jointed together with a bridle joint (B) Joint between the principal rafter and the king ... ) Joint between strut and king post, is generally of mortise and tenon type (D) All the above

Last Answer : Answer: Option D

How long does it take for sunlight to reach the Earth from the moon? -General Knowledge

Description : How long does it take for sunlight to reach the Earth from the moon? -General Knowledge

Last Answer : Light travels through space at just over 186,000 miles per second. The moon is just under 250,000 miles from Earth, so light from the Moon's surface takes approximately 1.26 seconds to reach Earth's surface. Hope this helps :)

How long does sunlight take to reach Earth? -General Knowledge

Description : How long does sunlight take to reach Earth? -General Knowledge

Last Answer : Light travels through space at just over 186,000 miles per second. The sun is just over 147 million kilometers away from the Earth, so light from the Sun's surface takes approximately 8 minutes and 20 seconds to reach the Earth's surface. Hope this helps :)

What is sunlight strikes earth above or below the equator in the shape of an?

Description : What is sunlight strikes earth above or below the equator in the shape of an?

Last Answer : Feel Free to Answer

How does the angle of the sunlight striking Earth effect the weather?

Description : How does the angle of the sunlight striking Earth effect the weather?

Last Answer : Need answer

What is Sunlight hits us at different blank during different parts of the year as the earth revolves around the sun?

Description : What is Sunlight hits us at different blank during different parts of the year as the earth revolves around the sun?

Last Answer : Angles the sun hits us at different angles

What is the prepositional phrase One theory about the extinction of dinosaurs is that a huge asteroid or comet hit the earth with such force that soot or dust in the air blocked out sunlight?

Description : What is the prepositional phrase One theory about the extinction of dinosaurs is that a huge asteroid or comet hit the earth with such force that soot or dust in the air blocked out sunlight?

Last Answer : The 4 prepositional phrases are:about the extinctionof dinosaurswith such forcein the air

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.

The sunlight is available 24 hours on the longest day at which of the following latitudes of the earth? (1) 49° (2) 66° (3) 63° (4) 69°51'

Description : The sunlight is available 24 hours on the longest day at which of the following latitudes of the earth? (1) 49° (2) 66° (3) 63° (4) 69°51'

Last Answer : (2) 66° Explanation: During the June solstice the Earth's North Pole is tilted 23.5 degrees towards the Sun relative to the circle of illumination. This phenomenon keeps all places above latitude of ... N in 24 hours of sunlight, while locations below latitude of 66.5 degrees are in darkness.

(3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ozone UV absorption is important to life, since it extends the absorption of UV by ordinary oxygen and nitrogen in air (which absorbs all wavelengths < 200 nm) through the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Description : (3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ... the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Last Answer : The advantage of detergents over soaps is – (1) Detergents are soluble in water (2) Detergents could not give much lather (3) Detergents give lather even with hard water (4) Soaps give lather with only soft water

(3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ozone UV absorption is important to life, since it extends the absorption of UV by ordinary oxygen and nitrogen in air (which absorbs all wavelengths < 200 nm) through the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Description : (3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ... the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Last Answer : The advantage of detergents over soaps is – (1) Detergents are soluble in water (2) Detergents could not give much lather (3) Detergents give lather even with hard water (4) Soaps give lather with only soft water

The process by which sunlight reaches to earth…

Description : The process by which sunlight reaches to earth…

Last Answer : Radiation

The Time taken for sunlight to reach the Earth is------? A. 700 sec B. 8hrs 20 mins C. 8 mins 20 sec (Answer) D. 8 mins

Description : The Time taken for sunlight to reach the Earth is------? A. 700 sec B. 8hrs 20 mins C. 8 mins 20 sec (Answer) D. 8 mins

Last Answer : C. 8 mins 20 sec (Answer)

To what does the atmosphere's "greenhouse effect" refer to? w) the fact that ozone reflects ultraviolet radiation x) the fact that air prevents heat from leaving the earth y) the fact that clouds prevent sunlight from reaching the earth z) the fact that green plants use sunlight to produce food

Description : To what does the atmosphere's "greenhouse effect" refer to? w) the fact that ozone reflects ultraviolet radiation x) the fact that air prevents heat from leaving the earth y) the fact that clouds prevent sunlight from reaching the earth z) the fact that green plants use sunlight to produce food

Last Answer : ANSWER: X -- THE FACT THAT AIR PREVENTS HEAT FROM LEAVING THE EARTH 

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 : Earth is titled towards the sun in the Northern Hemisphere

The sunlight is available 24 hours on the longest day at which of the following latitudes of the earth ? (1) 49° (2) 66½° (3) 63° (4) 69°51'

Description : The sunlight is available 24 hours on the longest day at which of the following latitudes of the earth ? (1) 49° (2) 66½° (3) 63° (4) 69°51'

Last Answer : 66½°

Are there any plans that use mirrors to light up the inside of a house with sunlight?

Description : Are there any plans that use mirrors to light up the inside of a house with sunlight?

Last Answer : Here’s an article on heating your house with mirrors and sunlight.

What does it mean if your pupils are dilated very large even in sunlight and low light?

Description : What does it mean if your pupils are dilated very large even in sunlight and low light?

Last Answer : The ‘shrooms are kicking in?

When placed in direct sunlight which object will absorb the most visible light?

Description : When placed in direct sunlight which object will absorb the most visible light?

Last Answer : Darker objects will absorb more light - especially blackobjects.Of course, the amount of sunlight absorbed also depends onthe exposed surface area.

The β-ring of 7-dehydrocholesterol is cleaved to form cholecalciferol by (A) Infrared light (B) Dim light (C) Ultraviolet irridation with sunlight (D) Light of the tube lights

Description : The β-ring of 7-dehydrocholesterol is cleaved to form cholecalciferol by (A) Infrared light (B) Dim light (C) Ultraviolet irridation with sunlight (D) Light of the tube lights

Last Answer : Answer : C

The reddish hue of the Sun at sunset is due to the fact that (a) Sunlight is polarized horizontally when scattered by molecules of the atmosphere (b) Light of short wavelength is scattered more effectively by the atmosphere than light of long wavelength (c) Light of short wavelength is scattered less effectively than light of long wavelength (d) Sunlight is polarized vertically when scattered by molecules of the atmosphere

Description : The reddish hue of the Sun at sunset is due to the fact that (a) Sunlight is polarized horizontally when scattered by molecules of the atmosphere (b) Light of short wavelength is ... than light of long wavelength (d) Sunlight is polarized vertically when scattered by molecules of the atmosphere

Last Answer : Ans:(b)

Photographic plates are covered with black paper because (a) the cellulose acetate of the paper must remain fresh (b) sunlight is easily absorbed by black paper and it helps develop the film (c) the silver bromide present on the plate is very sensitive to light and black paper prevents contact with light (d) the conversion of silver bromide to metallic silver is essential

Description : Photographic plates are covered with black paper because (a) the cellulose acetate of the paper must remain fresh (b) sunlight is easily absorbed by black paper and it helps develop the film ... paper prevents contact with light (d) the conversion of silver bromide to metallic silver is essential

Last Answer : Ans:(c)

Bacteria do not need sunlight to grow because (a) They lack chlorophyll and so they are incapable of making their own food (b) They hate sunlight (c) They use other kinds of light for their food synthesis (d) They prepare their food without the help of sunlight

Description : Bacteria do not need sunlight to grow because (a) They lack chlorophyll and so they are incapable of making their own food (b) They hate sunlight (c) They use other kinds of light for their food synthesis (d) They prepare their food without the help of sunlight

Last Answer : Ans:(d)

Which light is least effective in photosynthesis? (1) Blue light (2) Green light (3) Red light (4) Sunlight

Description : Which light is least effective in photosynthesis? (1) Blue light (2) Green light (3) Red light (4) Sunlight

Last Answer : (2) Green light Explanation: Green is the least effective color of light in driving photosynthesis, the process of converting light energy into chemical energy. Photosynthesis occurs in plants ... reflects rather than absorbs green light, green light cannot be used in the photosynthetic process.

Photophobia is - (1) a disease caused by too much sunlight (2) abnormal intolerance of light (3) the adjustment of the eye for light (4) the ability to perceive light

Description : Photophobia is - (1) a disease caused by too much sunlight (2) abnormal intolerance of light (3) the adjustment of the eye for light (4) the ability to perceive light

Last Answer : (3) the adjustment of the eye for light Explanation: Photophobia, or light sensitivity, is an intolerance of light. Sources such as sunlight, fluorescent light and incandescent light all can cause discomfort, along with a need to squint or close your eyes.

Photophobia is - (1) a disease caused by too much sunlight (2) abnormal intolerance of light (3) the adjustment of the eye for light (4) the ability to perceive light

Description : Photophobia is - (1) a disease caused by too much sunlight (2) abnormal intolerance of light (3) the adjustment of the eye for light (4) the ability to perceive light

Last Answer : (3) the adjustment of the eye for light Explanation: Photophobia, or light sensitivity, is an intolerance of light. Sources such as sunlight, fluorescent light and incandescent light all can cause discomfort, along with a need to squint or close your eyes.

White clothes are cooler than black ones because they – (1) absorb all the light that reaches them (2) reflect all the light that reaches them (3) will not allow the light to penetrate (4) cool the sunlight completely

Description : White clothes are cooler than black ones because they – (1) absorb all the light that reaches them (2) reflect all the light that reaches them (3) will not allow the light to penetrate (4) cool the sunlight completely

Last Answer : (2) reflect all the light that reaches them Explanation: The coolness and warmth associated with clothes is because of their reflective or absorptive capacities. White clothes are good reflectors of light, thereby keeping the body cool. The opposite is the case with black clothes.

Which of the following parts of the sunlight makes the solar cooker hot? (1) Ultra violet (2) Red light (3) Infra red (4) Cosmic rays

Description : Which of the following parts of the sunlight makes the solar cooker hot? (1) Ultra violet (2) Red light (3) Infra red (4) Cosmic rays

Last Answer : (3) Infra red Explanation: Glass transmits visible light but blocks infrared thermal radiation from escaping. This amplifies the heat trapping effect. A solar cooker, or solar oven, is a device which ... The vast majority of the solar cookers presently in use are relatively cheap, low-tech devices.

In sunlight, a rose appears red. In green light, the same rose appears – (1) red (2) black (3) green (4) yellow

Description : In sunlight, a rose appears red. In green light, the same rose appears – (1) red (2) black (3) green (4) yellow

Last Answer : (2) black Explanation: Any object which allows light to pass through it is known as a transparent object. The colour of any transparent object is the colour of the light transmitted by it. A red rose ... green light, it looks black because the red colour of the rose is absorbed by the green light.

Name the product obtained when methane and chlorine is exposed to ultraviolet light (sunlight).

Description : Name the product obtained when methane and chlorine is exposed to ultraviolet light (sunlight).

Last Answer : When a mixture of methane and chlorine is exposed to ultraviolet light, chloromethane is formed.

The blueness of the sky is mainly due to -------? A. The scattering of sunlight by air molecules (Answer) B. The presence of water vapor C. Absorption of blue light by the air D. Emission of blue light by the atmosphere

Description : The blueness of the sky is mainly due to -------? A. The scattering of sunlight by air molecules (Answer) B. The presence of water vapor C. Absorption of blue light by the air D. Emission of blue light by the atmosphere

Last Answer : A. The scattering of sunlight by air molecules (Answer)

In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of (a) appearance of the darker coloured individuals due to very poor sunlight (b) protective mimicry (c) inheritance of darker colour character acquired due to the darker environment (d) natural selection whereby the darker forms were selected.

Description : In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of (a) ... acquired due to the darker environment (d) natural selection whereby the darker forms were selected.

Last Answer : (d) natural selection whereby the darker forms were selected.

Assertion : Rainbow is an example of the dispersion of sunlight by the water droplets. Reason: light of shorter wavelength is scattered much more than light of longer wavelength (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A.(c) A is true but R is false. (d) A is false but R is true.

Description : Assertion : Rainbow is an example of the dispersion of sunlight by the water droplets. Reason: light of shorter wavelength is scattered much more than light of longer wavelength (a) Both A and R are true and R is the correct ... of A.(c) A is true but R is false. (d) A is false but R is true.

Last Answer : (c) A is true but R is false.