A thin lense has a focal-25 cm . what is the power of lense. and it's nature.???
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p=1/f
p=1/-25
p= -0.04
and it is cancave
p=1/-25
p= -0.04
and it is cancave
karamvirsingh7p7bwae:
what its unit
dipoter
symbol d
but the power of f is always in cm
here power of lens is need not focal length
ok
thanks........
welcome
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