In a single-slit diffraction experiment, the width of the slit is halved. The width of the central maximum, in the diffraction pattern, will become :

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Correct answer: b) twice. The angular width ( ) of the central maximum in a single-slit diffraction pattern is given by the formula: If the original slit width a is halved, the new slit width a' is: The angular width doubles. Since the linear width of the central maximum on the screen is directly proportional to the angular width ( ), the linear width of the central maximum will also double.

In a single-slit diffraction experiment, the width of the slit is halved. The width of the central maximum, in the diffr…

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