SATHEE: Optics Question 986

Optics Question 986

Question: Critical angle for light going from medium (i) to (ii) is q. The speed of light in medium (i) is v then speed in medium (ii) is

[DCE 2002]

Options:

A) $v (1 - \cos θ)$

B) $v / \sin θ$

C) $v / \cos θ$

D) $v (1 - \sin θ)$

Show Answer

Answer:

Correct Answer: B

Solution:

$_{2} μ_{1} = \frac{1}{\sin θ}$

$\Rightarrow \frac{μ_{1}}{μ_{2}} = \frac{1}{\sin θ}$

$\Rightarrow \frac{v_{2}}{v_{1}} = \frac{1}{\sin θ}$

$\Rightarrow \frac{v_{2}}{v} = \frac{1}{\sin θ}$

$\Rightarrow v_{2} = \frac{v}{\sin θ}$

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Optics Question 986

Question: Critical angle for light going from medium (i) to (ii) is q. The speed of light in medium (i) is v then speed in medium (ii) is

Options:

Answer:

Solution:

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