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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 air
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
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Answer:
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Your answer is B (frequency is same, but the wavelength is smaller in water than in air)
When light enters from air to water, since energy remains the same, it's frequency remains the same. And also the speed of the light decreases.
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Explanation:
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