what is the focal length of convex lens u _100 v 25
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sanjeevraj9918:
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Answered by
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Heya !! ☺
u = 100
v = 25
By Lens Formula
1/f = 1/v - 1/u
=> 1/f = 1/25 - 1/100
=> 1/f = 4-(-1)/100
=> 1/f = 5/100
=> 1/f = 1/20
=> f = 20
I didn't mentioned the unit of focal length as unit of u and v are also not given.
Hope my ans. is satisfactory.
u = 100
v = 25
By Lens Formula
1/f = 1/v - 1/u
=> 1/f = 1/25 - 1/100
=> 1/f = 4-(-1)/100
=> 1/f = 5/100
=> 1/f = 1/20
=> f = 20
I didn't mentioned the unit of focal length as unit of u and v are also not given.
Hope my ans. is satisfactory.
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