Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 Physics Ray Optics Optical Instruments

If we need a magnification of 375 from a compound microscope of tube length 150 mm and an objective of focal length 5 mm, the focal length of the eye-piece should be close to:

1

22 mm

2

2 mm

3

12 mm

4

33 mm

5

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