Physics, asked by kanishkpro7, 9 months ago

The focal length of a combination of convex lens of power 1D and concave lens of power

-1.5D is

(a) -2m (b) 2m (c) 2.5m (d) 0.5m​

Answers

Answered by parshant81
1

Answer:

The spectacles is a combination of a convex lens of focal length 20cm and a concave lens of focal length 25cm. The power of this lens combination will be

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