A ray of light incident on the interface of the medium $A$ and $B$ and it passes through medium $B$ as shown in above figure. Choose the correct option.

Medium 1 is more dense than medium 2

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Medium 1 less dense than medium 2

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The speed of the light in medium 1 is greater than the speed of the light in medium 2

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The frequency of the light in medium 1 is greater than the frequency of the light in medium 2

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The wavelength is the same in medium 1 and medium 2

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Solution

The correct option is A Medium 1 is more dense than medium 2
When a light ray travels from a rarer medium to denser medium, then the refracted ray bends towards the normal whereas when it travels from denser to rarer medium, then the refracted ray bends away from the normal.
According to the figure, the refracted ray bends away from the normal.
It means it goes from denser to rarer.
Hence medium 1 is more dense than the medium 2.

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