what is the focal length of a lens whose power is given us + 2.0
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Given :
Power = +2.0 D
Focal length = 1/Power
= 1/2
= 0.5 m
= 50 cm
hence the focal length is +50 cm,
therefore the lens is convex lens
Power = +2.0 D
Focal length = 1/Power
= 1/2
= 0.5 m
= 50 cm
hence the focal length is +50 cm,
therefore the lens is convex lens
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