find the power of concave lens of focal length 2.5 cm
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p=1/f
f=-2.5cm
p=1/-2.5
p=10/-25
p=-2/5
p=-0.4cm
f=-2.5cm
p=1/-2.5
p=10/-25
p=-2/5
p=-0.4cm
manishsdua14pbasn2:
thanks
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