Question

Radius of curvature of convex mirror is 80 cm and the size of the object is twice as that of the image then image distance is​

Answer 1

Answer:

the distance is 20cm

Explanation:

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Answer 2

Answer:

10cm

Explanation:

Given

R=40cm,f=R/2=20cm hi/ho=-v/u

hi/2hi=-v/(-u)

v/u=1/2

u=2v

For convex mirror

1/f=1/v-1/u

1/20=1/v-1/2v

1/20=1/2×1/v

v=20/2=10cm

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