1.

F_(1) and F_(2) are focal length of objective and eyepiece respectively of the telescope. The angular magnification for the giventelescope is equal to

Answer»

`(F_(1))/(F_(2))`
`(F_(2))/(F_(1))`
`(F_(1)F_(2))/(F_(1) + F_(2))`
`(F_(1) + F_(2))/(F_(1)F_(2))`

SOLUTION :In NORMAL ADJUSTMENT of the telescope, `|m| = (f_(0))/(f_(e)) = (F_(1))/(F_(2))`


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