CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Angular Magnification in Telescope

The focal len...

Question

The focal length of the objective and eye piece of a telescope are respectively 60 cm and 10 cm. The magnitude of the magnifying power when the image is formed at infinity is

A

50

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

6

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

70

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B 6
$m = \frac{f_{0}}{f_{e}} = \frac{60}{10} = 6$

Suggest Corrections

thumbs-up

0

Similar questions

Q. A telescope, when in normal adjustment, has a magnifying power of

6

and the objective and eye-piece are

14 c m

apart. The focal lengths of the eye-piece and the objective, respectively, are

Q. A telescope has objective and eye-piece of focal lengths 200 cm and 2 cm respectively. The magnifying power of the telescope for normal vision is

Q. A small telescope has an objective lens of focal length 140cm andan eyepiece of focal length 5.0cm. What is the magnifying power ofthe telescope for viewing distant objects when (a) the telescope is in normal adjustment (i.e., when the final imageis at infinity)? (b) the final image is formed at the least distance of distinct vision(25cm)?

Q. The focal lengths of objective and eye lens of anastronomical telescope are respectively

2 m

5 c m

. Final image is formed at (i) least distance of distinct vision, (ii) Infinity. Magnifying power in two cases will be:

Q. What is the magnifying power of a telescope whose objective and eye - piece have focal length 180 cm and 3 cm respectively?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Telescope

PHYSICS

Watch in App

explore_more_icon

Explore more

Angular Magnification in Telescope

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon