defence exam Coast Guard Navik GD (General Duty) 02/2025 Mock Test Series Physics Optics Refraction and Reflection
For having a large magnification power of a compound microscope
1
length of the microscope tube must be small
2
focal lengths of objective lens and eye-piece should be large
3
focal lengths of objective lens and eye-piece should be small
4
focal length of eye-piece must be smaller than the focal length of objective lens