Question

Draw a diagram to show how a converging lens held close to the eye acts as a magnifying glass. Why is it usual to choose a lens of short focal length for this purpose rather than one of long focal length?

Answer 1

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Answer 2

A diagram to show how a converging lens held close to the eye acts as a magnifying glass is given in the attachment below

Explanation:

It is common to prefer a lens of short-term focal length (The focal length for an optical device is a test of how intensely the device converges or differs in light ) because shorter the focal length (A +ve focal length means that light converges through a device, though reduced  focal length indicates that light varies in the device) of a convex lens, higher will be its magnifying power as

$P = \frac{1}{f}$

     

You can get all the answers of Chapter 5 in the link below:      https://brainly.in/question/14963222

     

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