GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this?
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Refraction
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Internal reflection
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Both (a) and (b)
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Diffusion
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Explanation:
Detailed explanation-1: -Rainbows are the result of the refraction and reflection of light. Both refraction and reflection are phenomena that involve a change in a wave’s direction.
Detailed explanation-2: -A rainbow is caused by sunlight and atmospheric conditions. Light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, separating into its component wavelengths–or colors.
Detailed explanation-3: -Clouds are formed by the process of evaporation of water from large water bodies like sea, river, lake, etc that results in formation of water vapours. These water vapours after condensation turned into rain droplets.
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