⇦ | ⇨ |

**To get three images of single object, one should have two plane mirrors at an angle of **

### Options

(a) 60⁰

(b) 90⁰

(c) 120⁰

(d) 30⁰

### Correct Answer:

90⁰

### Explanation:

Consider the diagram where two plane mirrors are inclined at an angle θ. Number of images formed in given by,

n = (360⁰/θ) – 1 ⇒ 3 = (360⁰/θ) – 1 ⇒ 360⁰/θ = 4 ⇒ θ = 90⁰

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Topics: Ray Optics
(94)

Subject: Physics
(2479)

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