Solving Point Source Light Problem | HELP

In summary, the question discusses a point source of light that illuminates an aperture 2.3 m away and results in a 10.2-cm-wide bright patch of light appearing on a screen 1.02 m behind the aperture. The solution involves using the blue triangle to find the angle and then using trigonometry to find the width of the aperture.
  • #1
BuBbLeS01
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Point Source...HELP!

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?


Homework Equations





The Attempt at a Solution


This looks like a geometry problem but I am not seeing it??
 
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  • #2
I have included a drawing of the situation in the attachment.
You can use the blue triangle to find the angle [itex]\alpha[/itex].
Then use standard trigonometry to find the answer (which is the length of one of the sides of the red triangle).
 

Attachments

  • aperture.jpg
    aperture.jpg
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  • #3
wow thank you very much!
 

What is a point source light problem?

A point source light problem is a common issue in lighting design where a single light source is causing unwanted glare or shadows. This can be a challenging problem to solve, as the light source cannot be easily moved or redirected.

Why is it important to solve point source light problems?

Point source light problems can affect the overall aesthetics and functionality of a space. Glare can be uncomfortable for occupants and shadows can make it difficult to see or perform tasks. Solving these problems can improve the overall lighting quality and user experience.

What are some common techniques for solving point source light problems?

Some common techniques for solving point source light problems include using diffusers or filters to soften the light, angling the light source to reduce glare, and adding additional lighting sources to balance out the lighting in the space.

How do I know if I have a point source light problem?

If you notice excessive glare or shadows in a space, chances are you have a point source light problem. Additionally, if the light source cannot be easily moved or redirected, this is a good indication that it is a point source light problem.

Can a point source light problem be completely eliminated?

While it may not be possible to completely eliminate a point source light problem, it can be significantly reduced with proper techniques and adjustments. It is important to find a balance between functionality and aesthetics when solving these problems.

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