Concept explainers
(a)
The angle at which the third order maximum occur.
(a)
Answer to Problem 36PQ
The angle at which the third order maximum occur is
Explanation of Solution
Write the expression for
Here,
Conclusion:
Calculate the grating spacing as follows.
Substitute
Therefore, the angle at which the third order maximum occur is
(b)
The angle at which third order maximum occur if the experiment was carried out underwater.
(b)
Answer to Problem 36PQ
The angle at which third order maximum occur if the experiment was carried out underwater is
Explanation of Solution
Write the expression to calculate
Here,
Write the expression for
Here,
Conclusion:
Substitute
Substitute
Therefore, the angle at which third order maximum occur if the experiment was carried out underwater is
(c)
The relationship between the diffracted rays from part (a) and part (b).
(c)
Answer to Problem 36PQ
The relationship between the diffracted rays from part (a) and part (b) is
Explanation of Solution
Write the expression for
Here,
Write the expression for wavelength of light in water.
Here,
Substitute
Conclusion:
Therefore, the relationship between the diffracted rays from part (a) and part (b) is
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Chapter 36 Solutions
Physics for Scientist and Engineers (Foundations And Connection; Volume I and II) LLF edition
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