Physics, asked by MDRakib8362, 1 year ago

The focal length of a lens new is equal to 1.5 in air is 20 cm what is its focal length of medium of refractive index is 1.5

Answers

Answered by shreyash297

25

the focal length will be 20cm

Answered by gautamsingh801301

18

Infinite .............. .........

rk928888: How.. Can u plz explain briefly in mathematical way.?

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