A student uses a converging lens to produce an enlarged virtual image of a scale she wishes to read accurately. The focal length of the lens is $10 c m$ . What is a suitable distance between the scale and the lens ?

8 c m

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10 c m

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15 c m

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20 c m

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Solution

The correct option is D $8 c m$
$f = 10 c m$
we know that virtual image formed by converging lens only when we keep object between f and lens.hence suitable distance between the scale and the lens should be <10cm which is 8cm.

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A student uses a converging lens to produce an enlarged virtual image of a scale she wishes to read accurately. The focal length of the lens is 10cm. What is a suitable distance between the scale and the lens ?

The correct option is D 8cmf=10cmwe know that virtual image formed by converging lens only when we keep object between f and lens.hence suitable distance between the scale and the lens should be <10cm which is 8cm.

A student uses a converging lens to produce an enlarged virtual image of a scale she wishes to read accurately. The focal length of the lens is $10 c m$ . What is a suitable distance between the scale and the lens ?

The correct option is D $8 c m$
$f = 10 c m$
we know that virtual image formed by converging lens only when we keep object between f and lens.hence suitable distance between the scale and the lens should be <10cm which is 8cm.