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...... is optical length of telescope....

...... is optical length of telescope.

A

`(f_0-f_e)/(f_0)`

B

`(f_0)/(f_e)`

C

`f_0-f_e`

D

`f_0+f_e`

Text Solution

Verified by Experts

The correct Answer is:
D
`f_0+f_e`
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