February 27, 2017

Homework Help: physics

Posted by steph on Saturday, September 14, 2013 at 2:43pm.

A lightbulb emits light that creates a shadow of a ball on a wall. If the radius of the ball is 12.3 cm, and the radius of the shadow is 29.5 cm, and the ball is 1.27 m away from the wall, how far is the lightbulb away from the wall? (For the present problem, you may assume that the light bulb is a"point source".)

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions