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PhysicsModern PhysicsDe Broglie & Matter WavesEasy2 minPYQ_2022

PhysicsEasysingle choice

If the kinetic energy of a free electron doubles, its de-Broglie wavelength $λ$ changes by a factor

Answer:

Solution:

$λ = \frac{h}{p} = \frac{h}{2 ( K ) m}$ Thus, when kinetic energy $K$ is doubled, the wavelength is changes by a factor of $\frac{1}{2}$ .

Stream:MHT_CETSubject:PhysicsTopic:Modern PhysicsSubtopic:De Broglie & Matter Waves

⏱ 2mℹ️ Source: PYQ_2022

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