Question:medium
The de-Broglie wavelength of a moving bus with speed \( v \) is \( \lambda \). Some passengers left the bus at a stop. Now, when the bus moves with twice of its initial speed, its kinetic energy is found to be twice of its initial value. What is the de-Broglie wavelength of the bus now?
The de-Broglie wavelength of a moving bus with speed \( v \) is \( \lambda \). Some passengers left the bus at a stop. Now, when the bus moves with twice of its initial speed, its kinetic energy is found to be twice of its initial value. What is the de-Broglie wavelength of the bus now?
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When the speed of an object is doubled, the de-Broglie wavelength is halved, as the wavelength is inversely proportional to velocity.
Updated On: Nov 28, 2025
- \( \lambda \)
- \( 2\lambda \)
- \( \frac{\lambda}{2} \)
- \( \frac{\lambda}{4} \)
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