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JEE Main20248 Apr 2024Evening ShiftPhysicsRay OpticsActual

The position of the image formed by the combination of lenses is :

Options

  1. A15 ~cm (right of second lens)
  2. B30 ~cm (left of third lens)
  3. C15 ~cm (left of second lens)
  4. D30 ~cm (right of third lens)

Correct answer

D. 30 ~cm (right of third lens)

Step-by-step solution

For lens 1: f ₁=10, u =-30, v = ? v= u f u+f = -30 10 -30+10 =15 For lens 2: f ₁=-10, u =10, v = ? v= u f u+f = 10 -10 10-10 = For lens 3: f =30, u =- , v = ? So v will be 30 .

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