Concept explainers
(a)
The angles in the first order spectrum can be expected in two lines having wavelengths of
(a)
Explanation of Solution
Given:
The wavelength of first violet line is
The wavelength of second violet line is
The diffraction grating has
The order of spectrum is
Formula used:
Write the expression for slit separation.
Here,
Write the expression for condition of maximum interference.
Here,
Rearrange the above equation.
Rearrange the above expression for
Calculation:
Substitute
Substitute
Substitute
Conclusion:
Thus, the angles at which first order spectrum is expected are
(b)
Angles of first order spectrum can be expected in two lines having wavelengths of
(b)
Explanation of Solution
Given:
The wavelength of first violet line is
The wavelength of second violet line is
The diffraction grating has
The order of spectrum is
Formula used:
Write the expression for slit separation.
Here,
Write the expression for condition of maximum interference.
Here,
Rearrange the above equation.
Rearrange the above expression for
Calculation:
Substitute
Substitute
Substitute
Conclusion:
Thus, angle at which first order spectrum for wavelength
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Chapter 33 Solutions
SAPLING PHYS SCIEN&ENG W/MULTITERM ACCE
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