Concept explainers
The width of the central maximum (in cm) in the diffraction pattern on a screen that is
Answer to Problem 20P
Explanation of Solution
Given info:
Wavelength,
Width of slit,
Formula used:
Where,
Calculation:
The path difference is an integer multiple of the wavelength in constructive interference.
Rearrange the given formula:
According to the question, find the angle to the first minimum from
Now, calculate the distance from the screen using
For small angle:
Therefore, the width of the central maximum is
Conclusion: The width of the central maximumis
Chapter 24 Solutions
Physics: Principles with Applications
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