Question:
When a single slit is replaced by a double-slit arrangement, the intensity of the central maximum is increased by:
When a single slit is replaced by a double-slit arrangement, the intensity of the central maximum is increased by:
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When moving from **single slit** to **double slit**, the intensity of the **central maximum increases by a factor of 4**.
Updated On: Mar 26, 2025
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The Correct Option is B
Solution and Explanation
In a double-slit experiment, the intensity is given by:
\[ I = 4 I_0 \cos^2(\delta/2) \] where:
- \( I_0 \) is the intensity from each slit.
At the central maximum, constructive interference occurs, and the intensity increases by a factor of 4.
\[ I = 4 I_0 \cos^2(\delta/2) \] where:
- \( I_0 \) is the intensity from each slit.
At the central maximum, constructive interference occurs, and the intensity increases by a factor of 4.
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