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An astronomical telescope has a large ap...

An astronomical telescope has a large aperture to

A

reduce spherical aberration

B

have high resolution

C

increases span of observation

D

have low dispersion

Text Solution

Verified by Experts

The correct Answer is:
B
Larger aperture increase the amount of light gathered by the telescope increasing the resolution.
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RESONANCE ENGLISH-GEOMETRICAL OPTICS-Exercise
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  5. The image formed by an objective of a compound microscope is

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  6. To get three images of a single object, one should have two plane mirr...

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  10. A beam of light is converging towards a point I on a screen. A plane g...

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  11. A prism having an apex angle 4^(@) and refraction index 1.5 is located...

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  12. A plano-concave lens is placed on a paper on which a flower is drawn. ...

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  13. A beam of diameter 'd' is incident on a glass hemisphere as shown. If ...

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  14. A light ray I is incident on a plane mirror M. The mirror is rotated i...

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  15. The image formed by a concave mirror is twice the size of the object. ...

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  16. For the system as shown in the figure, the image formed by the concave...

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  17. In Figure, light is incident at an angle theta which is slightly great...

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  18. An equilateral prism deviates a ray through 45^(@) for the two angles ...

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  19. A man is sitting in a room at 2m from a wall W1, wants to see the full...

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