MHT CET Physics question

Physics Ray Optics and Optical Instruments MHT CET

When light enters from air to water, then its

(A)Frequency increases and speed decreases
(B)Frequency is same but the wavelength is smaller in water than in airCorrect
(C)Frequency is same but the wavelength in water is greater than in air
(D)Frequency decreases and wavelength is smaller in water than in air

Answer: (B)

Solution

Frequency is a property of the source and stays constant, while the speed decreases in water so becomes

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Question ID VK-077130