NEET Physics Wave Optics Questions Solved

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(i) State and explain Huygens Principle.Using it, obtain Snell's law of refraction.

(ii) When light travels from a rarer to a denser medium, the speed decreases. Does the reduction in speed imply a reduction in the energy carried by the light wave?                            5mark

(i) Statement and explanation                                                                 1mark

     Derivation of Snell's law                                                                     3mark

(ii) No. Energy carried by a wave depends on the amplitude of the wave, not on the speed of wave propagation.                                                                                         1mark

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