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MHT CET20226 Aug 2022Morning ShiftPhysicsRay OpticsActual

A compound microscope produces a magnification of 24 . The focal length of the eyepiece is 5 ~cm . The final image is formed at the least distance of distinct vision. The magnification produced by the objective is

Options

  1. A4
  2. B5
  3. C6
  4. D7

Correct answer

A. 4

Step-by-step solution

For a compound microscope, M=m_o m_e and since the final image is formed at D=25 ~cm , aligned & M=m_o (1+ D f_e ) & m_o= M 1+ D f_e = 24 1+ 25 5 & m_e= 24 1+5 =4 aligned

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