A student has built a 20-cm-long pinhole camera for a
Chapter 19, Problem 2P(choose chapter or problem)
Problem 2P
A student has built a 20-cm-long pinhole camera for a science fair project. She wants to photograph the Washington Monument, which is 167 m (550 ft) tall, and to have the image on the detector be 5.0 cm high. How far should she stand from the Washington Monument?
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