Question
Define the power of a lens.
✓
Answer
The power of a lens (P) is the ability of the lens to converge or diverge an incident beam falling on it. It is expressed as the reciprocal of focal length (f).
The power of a lens (P) is given by
$P=\frac{1}{f(\text { in metre })}$
The power of a lens (P) is given by
$P=\frac{1}{f(\text { in metre })}$
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