Question

Read the following paragraph and answer the following questions.

The beautiful phenomenon of the rainbow is a combination of different phenomena dispersion,

internal reflection and refraction of light. The rainbow appears in the sky after a rainfall. The water

droplets act as small prisms. When sunlight enters the water droplets present in the atmosphere,

they refract and disperse the incident sunlight. Then, they reflect internally inside the droplet and

finally again refract it. As a collective effect of all the phenomena, the seven coloured rainbow is

observed.

Question::
i) Which three major phenomena are responsible for rainbow?

ii) How do refraction and dispersion take place?

iii) Give a diagrammatic representation of Rainbow production.


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Answer 1

Answer:

i) dispersion, internal reflection and refraction of light are the 3 major phenomena for rainbow

ii) When the sunlight passes through the droplets of water drops of rain.

iii) 7 beautiful colors

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