Question

a simple microscope has a magnifying power 5 when the image formed at a distance of distinct vision 25 cm then what is its focal length​

Answer 1

Answer:

a simple microscope has a magnifying power 5 when the image formed at a distance of distinct vision 25 cm then what is its focal length

=

The magnifying power of a simple microscope is given by M=1+D/f, when the final image is at minimum distance of distinct vision.

In the question, it is given that the least or minimum distance of distinct vision is 25 cm, and focal length of the microscope is 5 cm.

Putting these values in the above formula we get

M=1+D/f

M=1+25/5

M=1+5

M=6