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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsDe Broglie & Matter WavesMedium2 minPYQ_2012

PhysicsMediumsingle choice

An $α$ -particle moves in a circular path of radius $0.83 cm$ in the presence of a magnetic field of $0.25 Wb / m^{2}$ . The de-Broglie wavelength associated with the particle will beNEET 2012 (Screening)

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Answer:

Solution:

We knows $R = \frac{m v}{qB}$ $λ λ = \frac{h}{m v} = \frac{h}{qBR} = \frac{6.6 \times 1 0 ^{- 34}}{1.6 \times 1 0 ^{- 19} \times 0.83 \times 1 0 ^{- 2} \times 0.25} = 0.01 \overset{˚}{A}$

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

⏱ 2mℹ️ Source: PYQ_2012

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