Posted by **lindiwe** on Monday, April 16, 2012 at 4:56am.

The spherical side mirror on a car is convex and has a radius of curvature of 25 cm. Another car is following, 20 m behind the mirror. If the height of the car is 1.6 m, how tall is its image?

- engineering science -
**bobpursley**, Monday, April 16, 2012 at 5:01am
1/do+1/di=1/f is the equation, solve for di.

then, having di (remember the sign conventions for convex mirrors),

M=-di/do=hi/ho

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