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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsDe Broglie & Matter WavesEasy2 minPYQ_2020

PhysicsEasysingle choice

The correctness of velocity of an electron moving with velocity $50 m s^{- 1}$ is $0.005 %$ . The accuracy with which its position can be measured will be

Options:

Answer:

Solution:

Here, $Δ v = \frac{0.005 \times 50}{100} = 0.0025 m s^{- 1}$

$Δ x = \frac{h}{m Δ v}$

$= \frac{1.034 \times 10^{- 34}}{9.1 \times 10^{- 31} \times 0.0025} = 4634 \times 10^{- 5} m$

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

⏱ 2mℹ️ Source: PYQ_2020

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