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6C10.20 - Red and Blue Bulbs - Single Slit Diffraction

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​6C10.20 - Red and Blue Bulbs - Single Slit Diffraction

Preview
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Title6C10.20 - Red and Blue Bulbs - Single Slit Diffraction
Objective

Demonstrate a simple way to see a diffraction pattern.​

StatusAvailable
Assembly Instructions

Instructions
This demonstration allows each student to perform the exercise for him/herself. Place the outer sleeve with the red and blue filters over the straight filament lamp. In a slightly darkened room, have the student hold up two fingers side by side in front of the eyes and form a narrow slit. The student should see both a red and a blue diffraction pattern; the difference in widths of the two patterns is quite obvious. ​

Setup Time10
Operation Time
Preview Time5
Operation Instructions
ExportableNo
Demo on DimeNo
PIRA 200No
Export Instructions (if different)
HazardsNone
Analysis/Information
Category6 Optics
Subcategory6C - Diffraction
Keywordsinterference
Construction Information
 
Equipment TitleUse SHIFT+ENTER to open the menu (new window).
  
QuantityUse SHIFT+ENTER to open the menu (new window).
  
filament bulb long - Edison base
2
filter sleeve - red
1
filter sleeve - blue
1
monopod wooden rectangular base
3
rod - long
1
AC power switch - four outlets, with volts/amps breakout
1
index cards with single slit cut - class set
200