Is it true that when a ray of light passes from an optically denser to a rarer medium, the angle of refraction is less than the angle of incidence?

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True

False

answer is B.

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Detailed Solution

The above statement is False.
A ray of light travels from a denser to a rarer medium and tends to shift away from the normal. As the speed is higher in the rarer medium, the light moves away, so that's to keep light in the same phase. And when it travels from a rarer to a denser medium, it shifts towards the normal. So, when a ray of light passes from an optically denser to a rarer medium, the angle of refraction is more than the angle of incidence.
Light Reflection part 2 - Practically Study Material

Light Reflection part 2 - Practically Study Material

Where

n_{1}

and

n_{2}

are the refractive index of rarer and denser mediums, respectively, and

θ_{1}

and

θ_{2}

are the angle of incidence and refraction, respectively.
The correct statement would be that when a ray of light passes from an optically denser to a rarer medium, the angle of refraction is more than the angle of incidence.

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