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MHT CET20244 May 2024Morning ShiftPhysicsRay OpticsActual

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

Options

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

Correct answer

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

Step-by-step solution

For a compound microscope, resolving power is, P = 2 1.22 Power will increase when refractive index ( ) is increased:

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