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PhysicsModern PhysicsDe Broglie & Matter WavesMedium2 minQB
PhysicsMediummultiple choice

A particle moves in a closed orbit around the origin, due to a force which is directed towards the origin. The de Broglie wavelength of the particle varies cyclically between two values with . Which of the following statements are true?

Options:(select one or more)

Answer:
B, D
Solution:

varies, so the speed varies - a circular orbit (constant speed) is impossible, but an elliptic orbit about a focus gives varying speed (B true). Smaller means larger momentum and speed, which occurs closer to the origin, so when nearer (D true, C false).

Subject:PhysicsTopic:Modern PhysicsSubtopic:De Broglie & Matter Waves
⏱ 2mℹ️ Source: QB

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