Plzz give me answer
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To get the size of image in front of convex lens equal to size of the object we had to keep the object at centre of curvature,r=2f=50 so needle is kept at a distance of 50cmand
f=+25 cm,So power of lens =100/f( in cm)dioptore
=+4D
f=+25 cm,So power of lens =100/f( in cm)dioptore
=+4D
avanesh10017:
unable to understand
but your answer is correct
Whenever u kept an object at centre of curvature the imageis also formed at centre of curvature and size of objects =size of the image s
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Step-by-step explanation:
power of lens =100/f (in cm )
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