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Physics · WORK, ENERGY AND POWER

हिन्दी

If the reference point for the zero of potential energy of a physical system is shifted by an arbitrary constant \( C_0 \), which of the following physical quantities will change?

  1. The conservative force \( F(x) \)
  2. The value of total mechanical energy \( E \)
  3. The change in potential energy \( \Delta V \)
  4. The kinetic energy \( K(x) \)

Correct answer · Option 2

The value of total mechanical energy \( E \)

Explanation

Shifting the potential energy zero changes the absolute value of \( V(x) \) to \( V(x) + C_0 \), which shifts total mechanical energy \( E = K + V \) by \( C_0 \). However, differences \( \Delta V \), force \( F = -dV/dx \), and kinetic energy \( K \) remain unaffected.

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