Home
Class 12
PHYSICS
Assertion : The focal length of objectiv...

Assertion : The focal length of objective lens in telescope is much more than that of eye piece.
Reason : Telescope has high resolving power due to large focal length.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false

D

If both assertion and reason are false.

Text Solution

AI Generated Solution

Promotional Banner

Similar Questions

Explore conceptually related problems

If the focal length of the objective lens is increased then Magnifying power

If the focal length of objective lens is increased then magnifying power of

The aperture and focal length of the objective of telescope are large, why?

Relative difference of focal lengths of objective and eye lens in the microscope and telescope is given as

If the focal length of the ey piece of the telescope is doubled, then its magnifying power (m) will be

The focal length of the objective of a terrestrial telescope is 80 cm and it is adjusted for parallel rays, then its magnifying power is 20. If the focal length of erecting lens is 20 cm , then full length of telescope will be

Assertion : If objective and eye lenses of a microscope are interchanged then it can work as telescope. Reason : The objective of telescope has small focal length.

In an astronomical telescope, the focal length of the objective lens is 100 cm and of eye-piece is 2 cm . The magnifying power of the telescope for the normal eye is

The focal lengths of the objective and eye lenses of a telescope are respectively 200 cm and 5 cm . The maximum magnifying power of the telescope will be

The focal lengths of the objective and eye lenses of a telescope are respectively 200 cm and 5 cm . The maximum magnifying power of the telescope will be