What is the focal length of a magnifying glass that produces a magnification of 2.00 when...

Question

Question

science physics

Answer 1

Answer #1

1.

u = 8 cm

Given that

M = v/u = 2

v = 2* 8 = 16 cm

Using lens formula

1/f = 1/v - 1/u

1/f = 1/16 + 1/8

f = 5.33 cm

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P = 100/f

f = 100/ 2.5 = 40 cm

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f = 100/-4.5 = - 22.22 cm

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Answer 2

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