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Which of the following is correct regard...

Which of the following is correct regarding telescope?

A

In Astronomical telescope, aperture and focal length of objective is large than eye-piece.

B

In Terrestrial telescope, three convex lenses are used and final image is errect.

C

In Galilean telescope, two lenses, one convex (objective) and one concave (eye-piece) are used.

D

All options are correct.

Text Solution

Verified by Experts

The correct Answer is:
D
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CP SINGH-OPTICAL INSTRUMENTS-EXERCISES
  1. Choose the correct option:

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  2. Choose the correct option regarding compound microscope:

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  3. Which of the following is correct regarding telescope?

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  4. The magnifying power of a compound microscope is

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  5. A compound microscope has a magnifying power 30. The focal length of i...

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  6. A compound microscope has an objective of focal length 2.0 cm and an e...

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  7. In previous question, the magnifying power of the microscope is

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  8. The focal length of the objective and the eye piece of a compound micr...

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  9. In a compound microscope, the intermediate image is

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  10. The focal lengths of the objective and of the eye-piece of a compound ...

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  11. The focal length of the objective of a compound microscope is f0 and ...

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  12. When the length of a microscope tube increases, its magnifying power

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  13. An astronomical telescope has an angular magnification of magnitude 5 ...

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  14. Four convergent lenses have focal lengths 100cm, 10cm, 4cm and 0.3cm. ...

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  15. A planet is observed by an astronomical refracting telescope having an...

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  16. A simple telescope, consisting of an objective of focal length 60cm an...

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  17. The diameter of the moon is 3.5xx10^(3)km and its distance from the ea...

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  18. In an astronomical telescope in normal adjustment a straight black lin...

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  19. An astronomical telescope in normal adjustement receives light from a ...

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  20. In the pervious quenstion, if the tube length is increased slightly fr...

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