NEETPhysics-Optics

NEET Physics Microscopes MCQ Question

Type: MCQ-numerical-Medium-Class 12

A compound microscope with an objective of 1 cm and eyepiece of 2.0 cm focal length has a tube length of 20 cm. Calculate the magnifying power of microscope is final image is formed at the near point of eye.

A

250

B

270

C

200

D

300

Correct Answer

Option A

Detailed Explanation

The magnifying power of a compound microscope is given by M=Lfo×DfeM = \frac{L}{f_o} \times \frac{D}{f_e}, where LL is the tube length, fof_o is the focal length of the objective, and fef_e is the focal length of the eyepiece.

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