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AP EAMCET · PHYSICS · Oscillations

The variation of potential energy of a harmonic oscillator is as shown in the figure. Then, find the spring constant.

  1. A \(1 \times 10^2 \mathrm{Nm}^{-1}\)
  2. B \(150 \mathrm{Nm}^{-1}\)
  3. C \(0.667 \times 10^2 \mathrm{Nm}^{-1}\)
  4. D \(3 \times 10^2 \mathrm{Nm}^{-1}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(150 \mathrm{Nm}^{-1}\)

Step-by-step Solution

Detailed explanation

According to figure, when \(y=20 \mathrm{~mm}\) \(=2 \times 10^{-2} \mathrm{~m}\) then \(U_{\max }=0.04 \mathrm{~J}=4 \times 10^{-2} \mathrm{~J}\) When \(y=0\) then \(U_{\min }=0.01 \mathrm{~J}=1 \times 10^{-2} \mathrm{~J}\) \(\therefore\) The change in potential energy,…