calculate the power of the lense having focal length of +25 cms
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power of lens is 1/focal length
so power = 1/.25
power of lens = 4 D (here D is unit of power diopter)
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so power = 1/.25
power of lens = 4 D (here D is unit of power diopter)
plz follow me
abhishek1905:
No it is not.25cm it is 25 cm
focal length is taken in m not cm , bro. dont be oversmart
K bro sorry but the word used is hurt me
K don't think you are also smart
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P=1/f so p=1/25=0.04
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