A reflecting telescope utilizes...

A reflecting telescope utilizes

A concave mirror

A convex mirror

A prism

A plano-convex lens

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Assertion : A reflecting type telescope is preferred over refracting type in astronomy. Reason : Reflecting type telescope is free from chromatic aberration and parabolic surfaces are used to avoid spherical aberration.

(a) List some advantanges of a reflecting telescope, especially for high resolution astronomy. (b) A reflecting type telescope has a large mirror for its objective with radius of curvature equal to 80 cm . What is the magnifying power of telescope if eye piece used has a focal length of 1.6 cm ?

To avoid spherical aberration, quality reflecting telescopes use mirrors whose cross-sectional shapes are

A reflecting telescope has a large mirror for its objective with radius of curvature equal to 80 cm . What is the magnifying power of the telescope, if the eyepiece used has a focal length of 1.6 cm ?

A reflecting type telescope has a large concave spherical mirror of radius of curvature 80 cm as objective. What is the magnifying power of telescope if eye piece used has a focal length of 1.6 cm ?

A reflecting type telescope has a concave reflector of radius of curvature 120 cm . Calculate the focal length of eye piece tom secure a magnification of 15 .

A reflecting type telescope has a concave reflector of radius of curvature 120 cm. Calculate focal length of eye piece to secure a magnification of 20.

A reflecting type telescope has a concave reflector of radius of curvature 120 cm . Calculate focal length of eye piece to secure a magnification of 20 .

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A reflecting telescope utilizes
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