An astronomical telescope has a magnifying power 10, the focal length of the eye-piece is 20 cm. The focal length of the objective is
a)
b)
c)
200 cm
d)
2 cm
An astronomical telescope has a magnifying power 10, the focal length of the eye-piece is 20 cm. The focal length of the objective is
a)
b)
c)
200 cm
d)
2 cm
Question ID - 152246 | SaraNextGen Top Answer
An astronomical telescope has a magnifying power 10, the focal length of the eye-piece is 20 cm. The focal length of the objective is
a)
b)
c)
200 cm
d)
2 cm
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An astronomical telescope has a magnifying power 10, the focal length of the eye-piece is 20 cm. The focal length of the objective is |
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|
a) |
|
b) |
|
c) |
200 cm |
d) |
2 cm |
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