(a)
Interpretation:
The equivalent force constant is to be calculated.
Concept introduction:
The Hook’s law states that the strain produced in a solid is directly proportional to the applied force on it. The classical harmonic oscillator shows repetitive motion. It follows the Hook’s law. The Hook’s law is given by,
Where,
•
•
•
(b)
Interpretation:
The wavenumber of the light is to be calculated.
Concept introduction:
The relation between wavenumber and frequency is given by the formula,
Where,
•
•
•
(c)
Interpretation:
Whether the answer of part b agrees with the generality that many solid materials are very good absorbers of low-energy infrared light is to be stated.
Concept introduction:
The relation between wavenumber and frequency is given by the formula,
Where,
•
•
•
The relation between wavenumber and energy is given by the formula,
Where,
•
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