What is the width of the aperture?

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SUMMARY

The width of the aperture is calculated using the formula derived from the geometry of light propagation. Given a point source of light 2.3 meters away from the aperture and a bright patch of light measuring 10.2 cm on a screen 1.02 meters behind the aperture, the correct calculation for the aperture width is 0.0307 meters. This solution confirms that the aperture width can be determined through simple proportional relationships in optics.

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[SOLVED] Width of Aperture...please help!

1. Homework Statement
A point source of light illuminates an aperture 2.3 m away. A 10.2-cm-wide bright patch of light appears on a screen 1.02 m behind the aperture. How wide is the aperture?

2. Homework Equations



3. The Attempt at a Solution
I thought it was just (.102)/(2.3 + 1.02) = 0.0307 m
 
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