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If the momentum of electron is changed by P, then the de-Broglie wavelength associated with it changes by 0.5%. The initial momentum of electron will be:
Options
(a) 200 P
(b) 400 P
(c) P / 200
(d) 100 P
Correct Answer:
200 P
Explanation:
The de-Broglie’s wavelength associated with the moving of electron λ = h/P
Now, according to the problem
dλ / λ= – dp / P
0.5 / 100 = P / P’
P’ = 200 P
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Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The average power dissipated in AC circuit is 2 W. If a current flowing through
- A magnetic force acting on a charged particle of charge -2µC in a magnetic field of 2T
- An iron rod of volume 10⁻⁴ m³ and relative permeability 1000 is placed inside a long
- Three unequal resistors in parallel are equivalent to a resistance 1 Ω.
- A capacitor of 2.5 μF is charged through a resistor of 4 MΩ. In how much time
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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