The power of a lens is specified as P = 1F, where f is the focal length. The focal length (f) of a converging lens is considered positive and that of a diverging lens is considered negative. … Thus, the power of a converging lens is positive and that of the diverging lens is negative.
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Answer:
The power of a lens is specified as P = 1F, where f is the focal length. The focal length (f) of a converging lens is considered positive and that of a diverging lens is considered negative. … Thus, the power of a converging lens is positive and that of the diverging lens is negative.