Concept explainers
(a)
The angle for the first minimum in the diffraction pattern.
(a)
Answer to Problem 77CP
The angle for the first minimum in the diffraction pattern is
Explanation of Solution
Write the expression for the minima.
Here,
Rewrite the above equation.
Write the expression to calculate the wavelength.
Here,
Conclusion:
Substitute
Substitute
Therefore, the angle for the first minimum in the diffraction pattern is
(b)
The relative intensity at
(b)
Answer to Problem 77CP
The relative intensity at
Explanation of Solution
Write the expression for the relative intensity.
Here,
Write the expression for the phase angle.
Conclusion:
Substitute
Substitute
Therefore, the relative intensity at
(c)
Maximum distance between the plane of the sources and the slit if the diffraction pattern are to be resolved.
(c)
Answer to Problem 77CP
Maximum distance between the plane of the sources and the slit if the diffraction pattern are to be resolved is
Explanation of Solution
Write the expression for the distance between the plane of the sources and the slit.
Here,
Write the expression between
Here,
From the figure (I)
Use
Conclusion:
Substitute
Therefore, the maximum distance between the plane of the sources and the slit if the diffraction pattern are to be resolved is
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Chapter 38 Solutions
Physics for Scientists and Engineers with Modern Physics, Technology Update
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