Question

an object is placed 12cm from the pole of a concave lens of focal length 10cm. calculate the magnification of the image produced.

Answer 1

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GIVEN:

u = -12cm

f= -10cm

v=?

m=?

SOLUTION:

1/f= 1/v - 1/u

1/-10 = 1/v - 1/-12

1/12 - 1/10 = 1/-v

10-12/120=1/-v

v=60

m=v/u

m= -5

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HOPE IT HELPS