The image formation in a convex lens is shown in the above figure
AB is the object and A' B' – is the image the focal length of the lens is
a)40 Cm
b)10 Cm
c)20 Cm
d)05 Cm
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Answer:
40 Cm
Explanation:
0.4 metre
Length
40
Centimeter
0.4
Meter
Formula
divide the length value by 100
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