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Question: Answered & Verified by Expert
If $\mathrm{I}_0$ is the intensity of the principal maximum in the single slit diffraction pattern, then what will be the intensity when the slit width is doubled?
PhysicsWave OpticsMHT CETMHT CET 2023 (14 May Shift 1)
Options:
  • A $\frac{\mathrm{I}_0}{2}$
  • B $\mathrm{I}_0$
  • C $4 \mathrm{I}_0$
  • D $2 \mathrm{I}_0$
Solution:
2574 Upvotes Verified Answer
The correct answer is: $\mathrm{I}_0$
The slit width has no effect on the intensity of the principal maximum in the single-slit diffraction pattern.
$\therefore \quad$ The intensity will be same, $\mathrm{I}_0$.

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