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QJEEM19Phc148: JEE Main 2019 Physics - Class 12 JEEM19Phc148 Solution: Two plane mirrors are inclined to each other such that a ray of …

Two plane mirrors are inclined to each other such that a ray of light incident on the first mirror (M1) and parallel to the second mirror (M2) is finally reflected from the second mirror (M2) parallel to the first mirror (M1). The angle between the two mirrors will be :

Multiple Choice Options

  • A 45o
  • B 60o
  • C 75o
  • D 90o

Step-by-Step Verified Solution

JEE Main 2019 (Online) 9th January Evening Slot Physics - Geometrical Optics Question 178 English Explanation
Let the angle between two mirrors are θ.

We know sum of angles of triangle = 180o

∴  3θ = 180o

⇒  θ = 60o

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