﻿ 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  : Kaysons Education

# 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

### 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

What is the luminous intensity of a lamp which produces an illuminance of 12 lux at a distance of 5.0 m from it?

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Q10

Two plane mirrors are inclined to each other at an angle of 70o. A ray is incident on one mirror at an angle θ. The ray reflected from this mirror falls on the second mirror from where it is reflected parallel to the first mirror. What is the value of θ?