Home
Class 12
PHYSICS
Four lenses having the focal length of +...

Four lenses having the focal length of +45cm, +20 cm, +450 cm and +250 cm respectively are provided to make an astronomical telescope. The focal length of the eye piece to produce the largest magnification should be

A

15cm

B

20cm

C

150cm

D

250cm

Text Solution

Verified by Experts

The correct Answer is:
1
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-G|10 Videos

  • RAY OPTICS

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-H|10 Videos

  • RAY OPTICS

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-E|10 Videos

  • QUIZ

    VMC MODULES ENGLISH|Exercise PHYSICS|30 Videos

  • RAY OPTICS AND WAVE OPTICS

    VMC MODULES ENGLISH|Exercise IMPECCABLE|58 Videos

Similar Questions

Explore conceptually related problems

Magnifying power of an astronomical telescope is M.P. If the focal length of the eye-piece is doubled, then its magnifying power will become

Four lenses of focal length +15 cm , +20 cm, +150 cm and +250cm are available for making an astronomical telescope. To produce the largest magnification, the focal length of the eye-piece should be

The length of a telescope is 36 cm . The focal lengths of its lenses can be

You are provided with two convex lenses having focal lengths 4cm and 80cm, respectively, to form an astronomical telescope. Calculate its magnifying power for normal adjustment.

An astronomical refractive telescope has an objective of focal length 20 m and an eyepiece of focal length 2 cm .Then the magnification

An astronomical refractive telescope has an objective of focal length 20 m and an eyepiece of focal length 2 cm. Then

Distance of an object from a concave lens of focal length 20 cm is 40 cm. Then linear magnification of the image

Focal length of objective and eye piece of telescope are 200 cm and 4 cm respectively. What is the length of telescope for normal adjustment?

A telescope has magnification 5 and length of tube 60cm then the focal length of eye piece is–

A telescope has magnification 5 and length of tube 60cm then the focal length of eye piece is–