defence exam Coast Guard Navik GD (General Duty) 02/2025 Mock Test Series Physics Optics Refraction and Reflection
The objective lens of a compound microscope produces a magnification of value 10. In order to get an overall magnification of 60 when the image is formed 25 cm from the eyepiece, the focal length of the eyepiece should be
1
3 cm
2
5 cm
3
7 cm
4
none of the above