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MHT CET202310 May 2023Morning ShiftPhysicsRay OpticsActual

A person is observing a bacteria through a compound microscope. For better observation and to improve its resolving power he should

Options

  1. Aincrease the wavelength of light.
  2. Bincrease the refractive index of the medium between the object and objective léns.
  3. Cdecrease the focal length of the eyepiece.
  4. Ddecrease the diameter of the objective lens.

Correct answer

B. increase the refractive index of the medium between the object and objective léns.

Step-by-step solution

Resolving Power R = N.A 0.61 N.A =2 n By increasing the refractive index of the medium between the subject and the objective lens, the resolving power can be increased.

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