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QJEEM21Ph232f: JEE Main 2021 Physics - Class 12 JEEM21Ph232f Solution: Two plane mirrors M 1 and M 2 are at right angle to each other…

Two plane mirrors M1 and M2 are at right angle to each other shown. A point source 'P' is placed at 'a' and '2a' meter away from M1 and M2 respectively. The shortest distance between the images thus formed is : (Take 5 = 2.3)

JEE Main 2021 (Online) 31st August Morning Shift Physics - Geometrical Optics Question 108 English

Multiple Choice Options

  • A 2.3a
  • B 3a
  • C 4.6a
  • D 210a

Step-by-Step Verified Solution

JEE Main 2021 (Online) 31st August Morning Shift Physics - Geometrical Optics Question 108 English Explanation
Shortest distance is 2a between I1 & I3

But answer given is for I1 & I2

= (4a)2+(2a)2

= a20

= 4.47 a

Option (b)

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