In Galilean telescope, if the powers of ...

In Galilean telescope, if the powers of an objective and eye lens are respectively `+1.25D` and `-20 D`, then for relaxed vision, the length and magnification will be

`21.25 cm` and 16

7`5 cm` and 20

`75 cm` and 16

`8.5 cm` and `21.25`

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