and are focal lengths of objective and eyepiece respectively of the telescope. The angular magnification for the given telescope is equal to |
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a) |
b) |
c) |
d) |

and are focal lengths of objective and eyepiece respectively of the telescope. The angular magnification for the given telescope is equal to |
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a) |
b) |
c) |
d) |

1 Answer

127 votes

Magnifying power of a telescope having objective of focal length () and image distance is To see with relaxed eye final image should be formed at infinity. The distance between the objective and eyepiece is so adjusted the image is formed at the focus of the eyepiece. Substituting we get |

127 votes

127