Find the power of a concave lens of focal length 2.5cm.
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STEP BY STEP,
GIVEN
CANCAVE LENS FOCAL LENGTH IS IN MINIUS
FOCAL LENGTH = - 2.5CM = -2.5/100 M
POWER= 1/F
= 1/-2.5/100
= 100/-2.5
=-40 D
I HOPE THIS WILL HELP YOU.
GIVEN
CANCAVE LENS FOCAL LENGTH IS IN MINIUS
FOCAL LENGTH = - 2.5CM = -2.5/100 M
POWER= 1/F
= 1/-2.5/100
= 100/-2.5
=-40 D
I HOPE THIS WILL HELP YOU.
tanishq972003:
and it also means they are properly blind
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