A convex lens of focal length 12.5 cm is...

A convex lens of focal length 12.5 cm is used as a simple microscope. When the image is formed at infinite, Magnification is ....... (Near point for the normal vision is 25 cm).

2.5

`1.0`

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The correct Answer is:

B, C

Magnification of simple microscope, m =`D/f`
Here,D=25 cm,f=12.5 cm
`therefore m =(25)/(12.5)=2`

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