Question

1.In which of the material speed of light is less
2.In which of the material speed of light is more
3.Give an example of rarer and denser medium​

Answer 1

Answer:

1.In which of the material speed of light is less

Ans. Benzine

2.In which of the material speed of light is more

Ans. Water

3.Give an example of rarer and denser medium

Ans. rarer medium- Air

Denser medium- Glass/Water

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Answer 2

Answer:

velocity inversely proportional to refractive index

Explanation:

We know from the definition of refractive index, that the speed of light is higher in a medium with lower refractive index.

1-benzin 2-water

medium in which speed of light is more is known as optically rarer medium and a medium in which speed of light is less is said to be optically denser medium. For example in air and water, air is raer and water is a denser medium