Question

the focal length of a convex lens it is 50 centimetres is an object is kept distance of 75 centimetre from mainland then find image distance and magnification production


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Answer 1

Answer:

v=150cm or 1.5 m

M= +2

Explanation:

f=50

u=-75

lens formula

1/f=1/v-1/u

therefore

1/v=1/f+1/u

1/v=1/50-1/75

1/v=3-2/150

1/v=1/150

v=150cm

M=-v/u

M=-150/-75

M=+2