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For a telescope to have large resolving ...

For a telescope to have large resolving power the

A

focal length of its objetive should be large

B

focal length of its eye-piece should be large

C

focal length of its eye-piece should be small

D

aperture of its objective should be large

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The correct Answer is:
D
Resolving power `alpha` (aperture)
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CP SINGH-OPTICAL INSTRUMENTS-EXERCISES
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  3. For a telescope to have large resolving power the

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  4. Wavelength of light used in an optical instrument are lambda(1) = 4000...

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  5. Two points separated by a distance of 0.1mm can just be resolved in a ...

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  6. The resolving power of an astronomical telescope is 0.2 seconds. If th...

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  7. The angular resolution of a 10cm diameter telescope at a wavelength 50...

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  8. The resolving power of acompound microscope can be increased if we

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  9. How can we increase the resolving power of a microscope ?

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  10. Choose the correct option:

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  11. The focal length of a normal eye lens is about

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  12. When we see an object, image formed on the retina is (i) real (ii) v...

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  13. The maximum focal length of the eye lens of a person is greater than i...

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  14. The human eye has a lens which has

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  15. The resolving limit of eye is 1min. At a distance of x km from the eye...

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  16. Two point white dots are 1mm apart on a black paper. They are viewed b...

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  17. An astronaut is looking down on earth's surface from a space shuttle a...

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  18. 1. Identify the wrong description of the above figures

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  19. Mark the correct options (i) If the far point goes ahead, the power ...

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  20. In the case of hypermetropia (i) the image of a near object is forme...

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