Young's double slit experiment is performed using a source of white light.

A. The center fringe will be white.
B. The fringe next to the center fringe will be violet.
C. The fringe next to the center fringe will be red.
D. There will be no completely dark fringe.
E. The center fringe will be of no colour.

Choose the correct answer from the options given below:

A, B, D only

The correct answer is Option (2) → A, B, D only

(A) The center fringe corresponds to the point where path difference is zero for all wavelengths. All wavelengths constructively interfere at this point, producing white light.

(B) The sequence of the colours is due to the fact that shorter wavelength (ex-violet) have smaller fringe spacing than larger wavelength.

(D) Since the light contains all visible lights, there will never be a point where all wavelengths destructively interfere simultaneously.