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PhysicsModern PhysicsDe Broglie & Matter WavesEasy2 minPYQ_2013

PhysicsEasysingle choice

The de-Broglie wavelength of neutrons in thermal equilibrium at temperature $T$ is:NEET 2013 (Karnataka)

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Solution:

Using de-Broglie wavelength $λ λ = \frac{h}{2 m K _{B} T} = \frac{6.63 \times 1 0 ^{- 34}}{2 \times 1.67 \times 1 0 ^{- 27} \times 1.38 \times 1 0 ^{- 23} \times T} = \frac{3.08 \times 1 0 ^{- 34} \times 1 0 ^{25}}{T} m = \frac{30.8}{T} \overset{˚}{A}$

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

⏱ 2mℹ️ Source: PYQ_2013

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