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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

De Broglie wavelength of $0.05 e V$ thermal neutron is

Options:

Answer:

Solution:

$λ = \frac{h}{p} = \frac{h}{\sqrt{2 m_{0} K}}$

$λ = \frac{h}{\sqrt{2 \times 1 .66 \times 10^{- 27} \times 0 .05 \times 1 .6 \times 10^{- 19}}}$

$λ = 1 .28 Å$

$λ \approx 1 .3 Å$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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