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 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 focal length of the eyepiece.

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 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. What is the focal length of the eyepiece.

Magnification of microscope of objective of focal length 5 mm is 400. If its tube length is 20 cm, then focal length of eye-piece 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

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