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Introduction to Light

Light travels...

Question

Light travels with the same speed in different media.

A

f = 2R

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B

f = R

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Solution

The correct option is B
f = R

Light doesn't travel with the same speed in all media. E.g. the speed of light in vacuum is $3 \times 10^{8} m / s$ while in water it is $2.25 \times 10^{8} m / s$ . Hence, the given statement is false.

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