Numerical on Power of convex lens — task. Physics CBSE Live product, Class 10.

Reasoning type numerical:

A doctor has prescribed a corrective lens of power +3.4 \(D\). Find the focal length of the lens. Is the prescribed lens diverging or converging?

The prescribed lens is .

Focal length \(=\) \(m\)

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10. Numerical on Power of convex lens