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[" The magnifying power of a telescope i...

[" The magnifying power of a telescope is "9" ."],[3" When it is adjusted for parallel rays the "],[" distance between the objective and eyepiece "],[" is "20cm" .The focal length of lenses are "],[10cm,10cm],[11cm,9cm],[18cm,2cm],[15cm,5cm]

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The magnifying power of a telescope is 9. When it is adjusted for parallel rays, the distance between the objective and the eyepiece is found to be 20 cm. The focal length of lenses are :

The magnifying power of a telescope is 9. When it is adjusted for parallel rays the distance between the objective and eyepiece is 20cm . The focal lengths of lenses are

The magnifying power of a telescope is 9. When it is adjusted for parallel rays the distance between the objective and eyepiece is 20cm . The focal lengths of lenses are

The magnifying power of a telescope is 9. When it is adjusted for parallel rays the distance between the objective and eyepiece is 20 cm. The focal length of lenses are:

The magnifying power an astronomical telescope in the normal adjustment position is 100. The distance between the objective and the eyepiece is 101 cm. calculate the focal length of the objective and the eyepiece.

When a telescope is adjusted for parallel light, the distance of the objective from the eye piece is found to be 80 cm . The magnifying power of the telescope is 19 . The focal length of the lenses are

When a telescope is adjusted for parallel light, the distance of the objective from the eye piece is found to be 80 cm . The magnifying power of the telescope is 19 . The focal length of the lenses are