The image of a pin formed by a diverging lens of focal le...
The image of a pin formed by a diverging lens of focal length 10cm is 5cm from the lens. Calculate the distance of the pin from the lens
-3.3cm
3.3cm
10.0cm
15.0cm
20.0cm
Correct answer is B
1/u - 1/v = 1/f; f = 10cm, v = 5cm
u = 10/3 = 3.3cm
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