Q. 25.0( 1 Vote )

Which of the following properties of light conclusively support wave theory of light?
A. Light obeys laws of reflection.

B. Speed of light in water is smaller than the speed in vacuum.

C. Light shows interference.

D. Light shows photoelectric effect

Answer :

The change of speed of light in a medium cannot be explained through particle nature of light but can be explained only by its wave nature. Hence, option (B) is correct. Photoelectric effect shows particle nature, so it's wrong. Interference is a property of waves. Hence, option (C) is correct.

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