Two plane mirrors $M_{1}$ and $M_{2}$ each have length $1 m$ and are separated by $1 c m$ . A ray of light is incident on one end of mirror $M_{1}$ at angle $45^{\circ}$ . How many reflections the ray will have before going from the other end?

50

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51

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100

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101

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Solution

The correct option is D $101$
Option D is correct

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Similar questions

Q. Two parallel plane mirrors

M_{1}

and

M_{2}

have a length of

20 m

each and are

10 c m

apart A ray of light is incident on one end of mirror

M_{2}

at an angle of

53^{o}

Calculate the number of times the ray undergoes reflections
(i) If last reflation is at the other edge of mirror.
(ii) before it reaches the other end.

{g i v e n : {t a n 53}^{*} = \frac{4}{3}}

The plane mirrors $M_{1}$ and $M_{2}$ are inclined to each other such that a ray of light incident on mirror $M_{1}$ and parallel to the mirror $M_{2}$ is reflected from mirror $M_{2}$ parallel to the mirror $M_{1}$ . The angle between the two mirror is (in degrees)