Question

The velocity of light is______in different media
(A) 3 x 10^8 m/s
(B) different
(C)same
(D)infinite
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Answer 1

Answer:

different.

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Answer 2

Answer:

b) Different

Explanation:

The velocity of light is 3 * $10^{8}$ m/s ONLY IN Vacuum. Thus, answer a) is wrong

Similarly, nothing travels at an infinite speed and thus, answer d) is wrong

Also, Different media have different densities due to the arrangement of atoms and molecules in it, therefore, light will collide more in some mediums if their more dense. Therefore, option c) is wrong

Thus, option B) is correct