The Perfect Pinhole Camera · AI Generator #GEN-E42ABC93

Physics · optics

Problem

A photographer wants to build a pinhole camera to photograph a distant lighthouse that is

h = 45\;\text{m}

tall. The camera consists of a light-tight box with a small circular hole of diameter

d = 0.50\;\text{mm}

on one side and a screen on the opposite side at distance

L = 20\;\text{cm}

from the pinhole. When the lighthouse is positioned

D = 900\;\text{m}

away from the pinhole, what is the height of the lighthouse image formed on the screen?