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The number of lenses in a terrestrial te...

The number of lenses in a terrestrial telescope is

A

two

B

three

C

four

D

six

Text Solution

Verified by Experts

The correct Answer is:
B
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  3. The number of lenses in a terrestrial telescope is

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  4. To avoid spherical aberration, quality reflecting telescopes use mirro...

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  5. An astronomical telesope has objective and eyepiece of focal lengths 4...

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  6. A telescope using an eye piece of focal length 3 cm has a magnificatio...

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

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  10. A concave lens of glass, refractive index 1.5 has both surfaces of sam...

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  11. Given a point source of light, which of the following can produce a pa...

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  13. Diameter of a plano-convex lens is 6cm and thickness at the centre is ...

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  14. The image of an object, forme by a plano-convex lens at a distance of ...

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  15. By placing a comvex lens of focal length equal to 15.0 cm between an o...

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  16. For a normal eye, the cornea of eye provides a converging power of 40 ...

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  17. A person can see objects clearly only when they lie between 50cm and ...

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  18. The focal length of a plano-convex lens is f and its refractive index ...

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