MHT CET · Physics · Ray Optics
A person is observing a bacteria through a compound microscope. For better analysis and to improve the resolving power he should
- A increase the wavelength of light.
- B increase the refractive index of the medium between the object and objective lens.
- C decrease the focal length of the eye-piece.
- D decrease the diameter of the objective lens.
Answer & Solution
Correct Answer
(B) increase the refractive index of the medium between the object and objective lens.
Step-by-step Solution
Detailed explanation
For a compound microscope, resolving power is, \(\mathrm{P}=\frac{2 \mu \sin \theta}{1.22 \lambda}\)
\(\therefore \quad\) Power will increase when refractive index \((\mu)\) is increased:
\(\therefore \quad\) Power will increase when refractive index \((\mu)\) is increased:
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