Question

the focal length of a convex lens is 50cm if an object is kept at is distance of 75cm the lens then find the image distance and magnification produced by the lens
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Answer 1

Answer:

using 1/f=1/v-1/v

Explanation:

f=50cm

u=-75

1/50=1/v+1/75

1/v=1/50-1/75

1/v=75-50/75*50

v=75*50/25

v=150

m= -v/u

=150/75=2

Answer 2

Answer:

v=150 cm and m=-2

Explanation:

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