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

By: |Published on: Aug 31|Categories: Physics WAEC| 0 comments

A. -3.3cm
B. 3.3cm
C. 10.0cm
D. 15.0cm
E. 20.0cm

Correct Answer:

Option B – 3.3cm

Explanation

1/u – 1/v = 1/f; f = 10cm, v = 5cm
u = 10/3 = 3.3cm

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