Home
Class 12
PHYSICS
A simple telescope, consisting of an obj...

A simple telescope, consisting of an objective of focal length `60cm` and a single eye lens of focal length `5cm` is focused on a distant object in such a way that parallel rays emerge form the eye lens. If the object makes an angle of `2^(@)` at the objective, the angular width if the image is

A

`10^@`

B

`24^@`

C

`50^@`

D

`60^@`

Text Solution

Verified by Experts

The correct Answer is:
B

`M=bera/alpha=f_(0)/(f_(e))`
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

A simple telescope consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focused on a distant object in such a way that parallel rays emerge from eye lens. If the object subtends an angle of 2^(@) at the objective, the angular width of the image is (Let tan theta=theta assuming theta small).

A simple telescope, consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focussed on a distant object in such a way that parallel rays comes out from the eye lens. If the object subtends an angle 2^(@) at the objective, the angular width of the image

A simple telescope, consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focussed on a distant object is such a way that parallel rays comes out from the eye lens. If the object subtends an angle 2^(@) at the objective, the angular width of the image.

A telescope consisting of an objectives of focal length 60cm and a single -lens eyepiece of focal length 5cm is focussed at a distant object in such a way that parallel rays emerge from the eye piece .If the object subtends an angle of 2^(@) at the objectives ,then the angular width of the image will be - (1) 10^(@) (2) 24^(@) (3)50^(@) (4)1//6^(@)

A telescope consisting of an objective of focal length 60 cm and a single–lens eyepiece of focal length 5 cm is focussed at a distant object in such a way that parallel rays emerge from the eye piece. If the object subtends an angle of 2^(@) at the objective, then find the angular width of the image.

A simple telescope consisting of an objective of focal length 30cm and a single eye lens of focal length 6cm .Eye observes final image in relaxed condition. If the angle subtended on objective is 1.5 degree then image will subtend angle of

A simple telescope consisting of an objective of focal length 30cm and a single eye lens of focal length 6cm . Eye observes final image in relaxed condition.If the angle subtended on objective is 1.5^@ then image will subtend angle of