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If the focal length of the objective and...

If the focal length of the objective and eye lens are 1.2 cm and 3 cm respectively and the object is put 1.25 cm away from the objective lens and the final image is formed at the infinity. The magnifying power of the microscope is

A

150

B

200

C

250

D

400

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-OPTICAL INSTRUMENTS -PRACTICE SHEET (EXERCISE -I) (OPTICAL INSTRUMENTS) (LEVEL-I (MAIN)) (SUBJECTIVE OBJECTIVE TYPE QUESTIONS)
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  9. A telescope, consisting of an objective of focal length 60 cm and a si...

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  10. An astronimical telescope has an angular magnification of magnitude 5 ...

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  11. If tube length Of astronomical telescope is 105cm and magnifying power...

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  18. The magnifying power of an astronomical telescope is 8 and the distanc...

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  19. The focal length of the objective of a terrestical telescope is 80cm ...

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