1.

Plss answer thiss correctly.. ​

Answer»

ANSWER:

u = ?

V = -60cm

f = 30 cm

By LENS formula

1/f = 1/v-1/u

1/30 = -1/60-1/u

1/u = -1/60-1/30

1/u = -1-2/60

1/u = -3/60 = -1/20

u = -20 cm

Magnification = -v/u

= -(-60)/-20

= -3



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