# physics

posted by
**TP**
.

A coin 1.9 cm in diameter is held 40 cm from a concave spherical mirror of 30 cm radius of curvature. Locate the image of the coin

Then what is the diameter of coin?

posted by
**TP**
.

A coin 1.9 cm in diameter is held 40 cm from a concave spherical mirror of 30 cm radius of curvature. Locate the image of the coin

Then what is the diameter of coin?