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cse โ€ข paper_2 โ€ข quantum_mechanics

[UPSC CSE 2026] Foundations of Quantum Mechanics (Q1, 5M)

The de Broglie wavelength of a particle in thermal equilibrium at a temperature of 27\text{ }^\circ\text{C} is \lambda. At what temperature will it be \dfrac{\lambda}{2}?

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