In refraction, light waves are bent on passing from one medium to second medium because, in the second medium.
- frequency is different
- speed is different
- coefficient of elasticity is different
- amplitude is smaller
The Correct Option is B
Solution and Explanation
(A) frequency is different: Incorrect. Frequency remains constant during refraction.
(B) speed is different: Correct. The speed of light changes when it enters a different medium, which causes the bending of light (refraction).
(C) coefficient of elasticity is different: Incorrect. This relates to mechanical waves, not electromagnetic waves.
(D) amplitude is smaller: Incorrect. While the amplitude may decrease slightly due to some reflection and absorption, this is not the primary reason for refraction.
The correct answer is (B): speed is different
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