The image of a pin formed by a diverging lens of focal length 10cm is...
PHYSICS
WAEC 1992
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
- A. -3.3cm
- B. 3.3cm
- C. 10.0cm
- D. 15.0cm
Correct Answer: B. 3.3cm
Explanation
1/u - 1/v = 1/f; f = 10cm, v = 5cm u = 10/3 = 3.3cm
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