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) 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 ?
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 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.
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 telescope has an objective of focal length 100 cm and an eye-piece of focal length 5 cm. What is the magnifying power of the telescope when it is in normal adjustment?
A concave reflector of radius of curvature 110 cm is used by a reflecting type telescope. What will be the focal length of eyepiece required to obtain a magnification of 20?
