alleryThe power of a converging lens is:
APointless
BPositive
CPotential
DPowerless
Answer & Solution
Correct answer: B. Positive
1. The sign of the power tells you the type of lens.
2. Power is positive for a converging lens and negative for a diverging lens.
3. So the correct answer is positive.
_Source: syllabus Physics Part II, Ch 9 'Ray Optics and Optical Instruments'_
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