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Question

A rainbow is caused by _____________.

A
Heavy downpour
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B
Refraction and reflection of sunlight
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C
Change in temperature
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D
Evaporation
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Solution

The correct option is C Refraction and reflection of sunlight
Rainbow is caused by reflection, refration and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It is a meterological phenomenon. It is caused in the presence of sunlight. It appears in the section of sky which is directly opposite to the sun.

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