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PhysicsModern PhysicsDe Broglie & Matter WavesEasy2 minPYQ_2020

PhysicsEasysingle choice

The de-Broglie wavelength of a ball of mass $120 g$ moving at a speed of $20 m / s$ is

Answer:

Solution:

de-Broglie wavelength, $λ = \frac{h}{m v}$

= $\frac{6.6 \times 10^{- 34}}{120 \times 10^{- 3} \times 20}$

$= 2.75$ $\times 10^{- 34}$ $m$

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

⏱ 2mℹ️ Source: PYQ_2020

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