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

To Get Three Images Of Single Object One Should Have Physics QuestionTo Get Three Images Of Single Object One Should Have Physics Question

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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