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>>Light - Reflection and Refraction
>>Laws of Refraction
>> $Light is incident on a glass block as sh$

Question

Light is incident on a glass block as shown in Fig. If $θ_{1}$ is increased slightly, what happens to $θ_{2}$ ?

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A

$θ_{2}$ also increases slightly

B

$θ_{2}$ is unchanged

C

$θ_{2}$ decreases slightly

D

$θ_{2}$ changes abruptly, since the ray experience total internal reflection

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Correct option is C)

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