A lens of focal length 40 mm is used as a magnifier. The object being viewed...

Question

Question

Answer 1

Answer #1

Angular Magnification

$M = \frac{D}{f}$

here,

M = Angular magnification (to find)

D = Near point of user of magnifier = 25 cm

f = focal length of magnifier = 40 mm = 4 cm

Now,

M = 25/4 = 6.25 ans...

Answer 2

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