Two Plane Mirrors Are Placed At Right Angles To Each Other. A Ray Strikes One Mirror At An Angle Of Incidence θ such That It Is Also Reflected From The Second Mirror. Then, The Ray Reflected From The Second Mirror Will Be 

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Question

Two plane mirrors are placed at right angles to each other. A ray strikes one mirror at an angle of incidence θ such that it is also reflected from the second mirror. Then, the ray reflected from the second mirror will be 

Solution

Correct option is

Parallel to that incident on the first mirror

The incident ray AB strikes the first mirror M1 at an angle θ and is reflected along BC, as shown in fig (a). The ray BC is incident on mirror M2 at an angle α = 90o – θ and is reflected along CD making an angle  with the mirror M2. It is clear from fig (b) that the ray CD is parallel to the ray AB but its direction is reserved.

SIMILAR QUESTIONS

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Q2

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Q3

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Q6

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Q7

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Q8

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Q9

A short linear object of length L lies on the axis of a spherical mirror of focal length f at a distance u from the mirror. Its image has an axial lengthL’ equal to

Q10

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