an object of size 2 cm is placed at a distance 20 cm in convex lens of focal length 10 cm . find the size nature and position of the image
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Answer:
h = 2 cm
u = -20 cm , f = 10 cm
by lens formula ,
1/f =1/v - 1/u
1/10 =1/v - 1/ -20
1/10 -1/20 =1/v
Explanation:
1/v =1/20
v =20. m = v/u = h'/h =20/-20=h'/2 , h = -2cm ,image will be real and inverted, same size.
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