JEE Advanced · PhysicsEasy
When light travels from a rarer medium to a denser medium, what happens to its frequency?
- A.It increases
- B.It decreases
- C.It remains unchanged
- D.It becomes zero
Show correct answer & step-by-step solution
Correct answer: C — It remains unchanged
Solution
- The frequency of a light wave is a fundamental property determined by the source of the light.
- When light travels between different media, its speed and wavelength change to accommodate the new environment.
- Because the source remains the same, the frequency of the light wave does not change.
- Hence the answer is (C).
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