Question

A square object is placed 15 cm from a convex mirror of radius of curavture 90 cm. Calculate the position of the image and its areal magnification.

Answer 1

Answer:

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v = +22.5 cm

Explanation:

u = -15 cm

R =  +90 cm

W.K.T.,  f=2(R)

f = 90/2

f = +45 cm

Now, 1/f =  1/v  - 1/u

=> 1/45 = 1/v - 1/(-15)

=> 1/v =  1/45- 1/15

=> 1/v = 3-1/45

v= 45/2

v = 22.5 cm