To demonstrate the phenomenon of interference we require two sources which emit radiations of
a)	Nearly the same frequency
b)	The same frequency
c)	Different wavelength
d)	The same frequency and having a definite phase relationship

Question ID - 150101 | SaraNextGen Top Answer

To demonstrate the phenomenon of interference we require two sources which emit radiations of
a)	Nearly the same frequency
b)	The same frequency
c)	Different wavelength
d)	The same frequency and having a definite phase relationship