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easyMCQNEET 20212026Physics
1 mark

A lens of large focal length and large aperture is best suited as an objective of an astronomical telescope since:

  1. A
    A large aperture contributes to the quality and visibility of the images
  2. B
    A large area of the objective ensures better light gathering power
  3. C
    A large aperture provides a better resolution
  4. D
    All of the above

Solution & Step-by-step Explanation

A large aperture in a telescope objective is desirable because:It gathers more light, making the image brighter.It increases the resolving power ().It improves the overall quality of the image.

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A lens of large focal length and large aperture is best suited as an objective of an astronomical telescope since:
A
A large aperture contributes to the quality and visibility of the images
B
A large area of the objective ensures better light gathering power
C
A large aperture provides a better resolution
D
All of the above

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