When one light ray is reflected from a plane mirror with $30^{\circ}$ angle of reflection, the angle of deviation of the ray after reflection is : - DASH

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Question

When one light ray is reflected from a plane mirror with $30^{\circ}$ angle of reflection, the angle of deviation of the ray after reflection is :

$140^{\circ}$

$130^{\circ}$

$120^{\circ}$

$110^{\circ}$

Solution

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