Physics
Assertion (A) : Light scatters when it is passed through air.
Reason (R) : Light maybe be absorbed, deflected, passed through or bounced back.
- Both A and R are true, and R is the correct explanation of A.
- Both A and R are true, but R is not the correct explanation of A.
- A is true, and R is false.
- A is false, and R is true.
Light Energy
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Answer
Both A and R are true, and R is the correct explanation of A.
Reason —
Assertion (A) is true because when light travels through air, it interacts with tiny dust particles and various gases which causes the light to scatter in different directions.
Reason (R) is true because when light passes through air, some of it is absorbed, some of it is deflected, some passes through and some of it bounces back in different directions due to the presence of various gases and dust particles in air.
Answered By
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Related Questions
A passage is given below. Underline the errors and correct them in the given table.
All the bodies in our solar system are luminous except the sun and the stars. We can see other heavenly bodies of the solar system only when the light from earth falls on them. The sun revolves around the earth and the moon revolves around the earth. While revolving, the sun, earth and moon come in a straight line. This results in blocking of light from the moon. Eclipse is defined as the partial or total blocking of the heat of the sun by a heavenly body. There are two types of eclipses called the solar eclipse and the lunar eclipse. When the earth casts its shadow on the earth, a solar eclipse is said to occur. When the earth casts its shadow on the moon, a lunar eclipse is said to occur. Solar eclipse occurs on a full moon night. Lunar eclipse occurs on a new moon night.
Incorrect Word Correct Word Assertion (A) : Luminous objects emit light.
Reason (R) : Sun is a natural source of light and bulbs are artificial source of light.
- Both A and R are true, and R is the correct explanation of A.
- Both A and R are true, but R is not the correct explanation of A.
- A is true, and R is false.
- A is false, and R is true.
Assertion (A) : Opaque objects cast shadows.
Reason (R) : Opaque objects do not allow light to pass through.
- Both A and R are true, and R is the correct explanation of A.
- Both A and R are true, but R is not the correct explanation of A.
- A is true, and R is false.
- A is false, and R is true.
Assertion (A) : Solar eclipse occurs when the earth, moon and sun come in a straight line.
Reason (R) : Solar eclipse occurs on a new moon day.
- Both A and R are true, and R is the correct explanation of A.
- Both A and R are true, but R is not the correct explanation of A.
- A is true, and R is false.
- A is false, and R is true.