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Concept explainers
Position of the first line.
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Answer to Problem 32E
The position of the first line from the centre of the screen is
Explanation of Solution
Write the expression for diffraction grating.
Here,
When
Write the expression for angle of the beam.
Here,
Substitute equation (III) in equation (II)
Write the expression for space between the two adjacent lines.
Here,
Conclusion:
Substitute
The distance between the two adjacent lines is
Substitute
Therefore, the position of the first line from the centre of the screen is
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Chapter 23 Solutions
General Physics, 2nd Edition
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