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P-1 Lenses — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceP-1 Lenses2 Marks
Question
If there is an increase or decrease in the focal length of a lens, what will be the effect on the power of the lens?
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Answer

The power of a lens is the inverse of its focal length. Hence, if there is an increase in the focal length of a lens, the power of the lens will decrease accordingly. Similarly, if there is a decrease in the focal length of a lens, the power of the lens will increase accordingly.

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