Which of the following phenomena of light are involved in the formation of a rainbow?

A. Refraction
B. Dispersion
C. Total internal reflection
D. All of the above

Submitted by: Safdar Abbas

The formation of rainbow involves all three phenomenon: Refraction, dispersion, and total internal reflection. The sunlight shines on a water droplet. As the light passes into the raindrop the light bends, or refracts. Due to slow down of light, white light gets dispersed into seven colours. Then total internal reflection happens on the other end of the drop.

Related Mcqs:

Which of the following statements is true when we see ‘rainbow’ ?
A. We face sun and raindrops
B. The Sun remains behind us and we face raindrops
C. In light rainfall, we face Sun
D. The sky remains clear and the sun is at lower position in the sky
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At what angle above the horizon must the sun be to create a rainbow?
A. 90 degrees
B. 60 degrees
C. 40 degrees
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C. Red
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C. Stratosphere
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