Concept explainers
(a)
The half width of the spectral line.
(a)
Answer to Problem 30PQ
The half width of the spectral line is
Explanation of Solution
Write the expression for the grating spacing.
Here,
Write the expression for the grating spacing in terms of number of ruling on the grating.
Here,
Rewrite the equation (II) to determine
Write the expression for the half width of the spectral line.
Here,
Conclusion:
Substitute
Substitute
Substitute
Therefore, the half width of the spectral line is
(b)
The half width of the spectral line.
(b)
Answer to Problem 30PQ
The half width of the spectral line is
Explanation of Solution
Conclusion:
Substitute
Therefore, the half width of the spectral line is
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Chapter 36 Solutions
Physics for Scientists and Engineers: Foundations and Connections
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