Review - Standing Waves

St. Mary's Physics YouTube Channel



D) Diffraction – the spreading out of a wave into the region behind an obstacle


| Onsite Version |






Amount of Diffraction
 Depends on
 Wavelength &
Size of Slit




Press the up/down arrows to change slit size

| Flash |




when size of the
wavelength size






Which slit will

cause light to

diffract the most?






Answer (A)
Diffraction is
greatest when the slit is small compared to the wavelength of the wave.


Why does amount of diffraction increase
as the size of the slit decreases?
Molecular Expressions 


Review - Which slit will create the most diffraction? 






Review - Name that Wave!

St. Mary's Physics YouTube Channel

School Blocks YouTube? Download the file below.

Name that Wave!.mp4





More on Diffraction
 University of British Columbia



©Tony Mangiacapre., - All Rights Reserved [Home]
 Established 1995
Use any material on this site (w/ attribution)