Physicsmedium · Past Paper
Which of the following is the correct lens formula?
A1/f = 1/v + 1/u
B1/f = 1/v - 1/u
Cf = u + v
D1/f = u/v
✓ Correct Answer: B — 1/f = 1/v - 1/u
The lens formula relates focal length (f), object distance (u), and image distance (v).
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