Home
Class 12
PHYSICS
Four convergent lenses have focal length...

Four convergent lenses have focal lengths `100cm, 10cm, 4cm` and `0.3cm`. For a telescope with maximum possible magnification, we choose the lenses of focal lengths

A

10 cm, 0.3 cm

B

10cm, 4cm

C

100 cm, 4 cm

D

100 cm, 0.3cm

Text Solution

Verified by Experts

The correct Answer is:
D

`f_(0)` should be maximum and `f_(e)` should be minimum
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND OPTICAL INSTRAUMENTS

    NARAYNA|Exercise EXERCISE-2 (H.W)(REFLECTION)|15 Videos
  • RAY OPTICS AND OPTICAL INSTRAUMENTS

    NARAYNA|Exercise EXERCISE-2 (H.W)(REFRACTION)|21 Videos
  • RAY OPTICS AND OPTICAL INSTRAUMENTS

    NARAYNA|Exercise EXERCISE-2 (C.W)( OPTICAL INSTRUMENTS (MICROSCOPES) )|5 Videos
  • NUCLEI

    NARAYNA|Exercise ASSERTION & REASON|5 Videos
  • SEMI CONDUCTOR DEVICES

    NARAYNA|Exercise Level-II (H.W)|36 Videos

Similar Questions

Explore conceptually related problems

Four convergent lenses have focal lengths 100cm, 10cm, 4cm and 0.3cm . For a telescope with maximum possible magnificaiton, we choose the lenses of focal lengths

An astronomical telescope consists of two convex lenses of focal lengths 20 cm and 4 cm. For the nomal adjustment of the telescope, what is the angular magnification produced by the telescope ?

How would you combine two lenses of focal lengths 25 cm and 2.5 cm to make a telescope ? What is the magnifying power of this telescope ?

How would you combine two lenses of focal lengths 25 cm and 2.5 cm to make a telescope ? What is the magnifying power of this telescope ?

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

Arrange the following combinations in the increasing order of focal length a) Two piano convex lenses of focal lengths 20 cm and 30 cm in contact b) Two convex lens of focal lengths 20 cm and 10 cm in contact Two convex lenses of focal length 25 cm separated by 5 cm.

Arrange the following combinations in the increasing order of focal length Two piano convex lenses of focal lengths 15 cm and 30 cm in contact Two convex lens of focal lengths 40 cm and 50 cm in contact Two convex lenses of focal length 20 cm separated by 5 cm

You are given two convex lenses of focal lengths 10 cm and 60 cm. To make a telescope, which of the two lenses will you use as object lens and which one as eye lens ?