NEET Physics Question - Wave Optics - Young's Double Slit Experiment

Assertion (A): If Young's double slit experiment is performed with white light, the bright fringes produced are white and the dark fringes black.

Reason (R): In case of interference, there is no colour splitting.

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

When white light is used in YDSE, the central fringe is white. However, other bright fringes are coloured due to dispersion (different wavelengths have different fringe widths). Dark fringes are also not perfectly black. Thus, there is colour splitting. Both A and R are false.

Rankers Physics

YDSE with White Light

Solution:

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