Home
Class 12
PHYSICS
A compound microscope has a magnifying p...

A compound microscope has a magnifying power of 100 when the image is formed at infinity. The objective has a focal length of 0.5 cm and the tube length is 6.5 cm. Find the fbcal length of the eyepiece.

A

2 cm

B

4 cm

C

8 cm

D

10 cm

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

A compound microscope has a magnifying power of 100 when the image is formed at infinity. The objective has focal length 0.5cm and the tube length is 6.5cm . Find the focal length of the eye-piece.

A Galilean telescope is 27 cm long when focussed to form an image at infinity. If the objective has a focal length of 30 cm, what is the focal length of the eyepiece?

A compound microscope has a magnifying power of 35. Assume that the final image is formed at DDV (25 cm). If the focal length of eyepiece is 8 cm, the magnification produced by objective is

The magnifying power of a microscope with an objective of 5 mm focal length is 400. The length of its tube is 20cm. Then the focal length of the eye - piece is

A simple microscope has a magnifying power of 3.0 when the image is formed at the near point (25 cm) of a normal eye. (a) What is its focal length? (b) What will be its magnifying power if the image is formed at infinity?

The magnifying powerof a compound microscope is 20 and the distance between its two lenses is 30 cm when the final image is at the near point of the eye If the focal length of eye-pfece is 6.25 cm, the focal length of objective is

An astronomical telescope has a magnifying power 10. The focal length of eyepiece is 20 cm . The focal length of objective is