Question

A car uses a convex mirror of curvature 1.2 m as its rear-view mirror. A minibus of cross section 2.2 m × 2.2 m is 6.6 m away from the mirror. Estimate the image size.

Answer 1

For a convex mirror,

Given that, a minibus, approximately of a shape of square is at distance 6.6 m from mirror.

i.e., u = -6.6 m

From mirror formula,

∴ h₂ = 0.183 m 

i.e., h₂ 0.2 m