At the second maxima on either side of the central bright spot in a double-slit experiment, light from
A) one opening travels two wavelengths of light farther than light from the other opening.
B) each opening travels the same distance.
C) one opening travels twice as far as light from the other opening.
D) one opening travels one wavelength of light farther than light from the other opening.

Question

Quizplus · Accepted Answer

At the second maxima in a double-slit experiment, the path difference between the light from the two slits is two wavelengths. This condition is necessary for constructive interference to occur at that point, leading to a bright fringe.

At the Second Maxima on Either Side of the Central