The figure shows the interference pattern obtained in a double-slit experiment using light of wavelength 600 nm.
v
-Which one of the following phenomena would be observed if the wavelength of light were increased?
A)The fringes would be brighter.
B)More bright fringes would appear on the screen.
C)The distance between dark fringes would decrease.
D)Single-slit diffraction effects would become non-negligible.
E)The angular separation between bright fringes would increase.

Question

The figure shows the interference pattern obtained in a double-slit experiment using light of wavelength 600 nm.
v 
-Which one of the following phenomena would be observed if the wavelength of light were increased?
A)The fringes would be brighter. 
B)More bright fringes would appear on the screen. 
C)The distance between dark fringes would decrease. 
D)Single-slit diffraction effects would become non-negligible. 
E)The angular separation between bright fringes would increase.

Quizplus · Accepted Answer

The Answer is E

The Figure Shows the Interference Pattern Obtained in a Double-Slit