When the screen is moved further along the x-axis away from the source, which of the following statements is false?

The central bright fringe moves along the x-axis.
The positions of all bright fringes except the central one are altered.
The spacing between consecutive fringes does not change.
The angular separation between fringes is affected by the shift.

Correct answer: The central bright fringe moves along the x-axis.

Solution

The central bright fringe does not move along the x-axis when the screen is shifted; it remains at the same position because it corresponds to the point of zero path difference.

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