Concept explainers
(a)
The number of grooves present in a centimeter along the radius of the record.
(a)
Answer to Problem 61A
The number of the grooves present along the radius of the record is
Explanation of Solution
Given:
The distance of the screen from the slit is
The separation of lines in diffraction pattern is
The wavelength of the laser is
The diffraction grating of the record is
The given figure is shown below.
Formula used:
The expression for the distance between two ridges is,
Calculation:
The distance
The number of ridges
Conclusion:
Thus, the number of the grooves present along the radius of the record is
(b)
The number of grooves present in a centimeter.
(b)
Answer to Problem 61A
The number of grooves is present in a centimeter, when the song takes
Explanation of Solution
Given:
The diffraction grating of the record is
A song takes
The given figure is shown below.
Formula used:
The number of ridges are:
Here, dg is the diffraction grating.
Calculation:
The number
The
The number of ridges present in a centimeter of the record are,
Conclusion:
Thus, the number of grooves is present in a centimeter, when the song takes
Chapter 19 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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Sears And Zemansky's University Physics With Modern Physics
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