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Q.

When a light wave travels from denser to rarer medium, its
P) velocity decreases R) wavelength increases Q) frequency remains unchanged

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a

Q and R are correct

b

P and R are correct

c

P and Q are correct

d

all are correct

answer is B.

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Detailed Solution

When a light ray travel from denser to rarer

1) velocity increases

2) wave length increases

3) frequency remain unchanged

So Q and R are correct

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