plaese solve this 18 (c)
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hey....
nature of lens : convex lens
power of lens = 1/f
lens formula
also u=-25cm;v=-50cm
1/f=1/v-1/u
1/f=u-v/uv
f=uv/u-v
substituting values of u and v
then =-25(-50)/-25+50
=1250/25===>f=50 cm
also p=1/f(in mts)
f=50cm==>0.5m
P=1/0.5
P=2D
:):):)hope this ans would help u
nature of lens : convex lens
power of lens = 1/f
lens formula
also u=-25cm;v=-50cm
1/f=1/v-1/u
1/f=u-v/uv
f=uv/u-v
substituting values of u and v
then =-25(-50)/-25+50
=1250/25===>f=50 cm
also p=1/f(in mts)
f=50cm==>0.5m
P=1/0.5
P=2D
:):):)hope this ans would help u
nitthesh7:
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