Single slit Diffraction using green light

AI Thread Summary
Monochromatic green light with a wavelength of 546 nm is used in a single slit diffraction experiment involving a slit width of 0.095 mm and a distance of 75 cm to a screen. The central bright band width is calculated to be 4.3 mm. A participant expresses confusion about consistently obtaining double the expected width, questioning whether the measurement should extend only to the midpoint of the dark band rather than the full width. Clarification on the correct measurement approach is sought, emphasizing the importance of understanding the diffraction pattern. The discussion highlights the nuances of calculating diffraction effects in physics experiments.
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Homework Statement




Monochromatic green light of wavelength
546 nm falls on a single slit with a width
of 0.095 mm. The slit is located 75 cm from
a screen. How wide will the central bright
band be?




Homework Equations



D sin 0dark = m 入

The Attempt at a Solution



Can someone tell me why i keep getting double of the answer? ans is 4.3 mm
 
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Aren't you measuring all the way to the centre of the dark band and considering that to be the width of the bright band? Surely you should stop halfway.


This is useful...

http://www.walter-fendt.de/ph14e/singleslit.htm"
 
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