The reason there are two slits, rather than one, in a Young's experiment is:
A) to increase the intensity
B) one slit is for frequency, the other for wavelength
C) to create a path length difference
D) one slit is for fields, the other is for fields
E) two slits in parallel offer less resistance

Question

The reason there are two slits, rather than one, in a Young's experiment is:
A) to increase the intensity 
B) one slit is for frequency, the other for wavelength 
C) to create a path length difference 
D) one slit is for fields, the other is for fields 
E) two slits in parallel offer less resistance

Quizplus · Accepted Answer

The reason for having two slits in a Young's experiment is to create a path length difference. This allows for interference patterns to form, which are the basis of the experiment.

The Reason There Are Two Slits, Rather Than One, in a Young's