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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
- When 1 kg of ice at 0⁰C melts to water at 0⁰C, the resulting change in its entropy
- A series L-C-R circuit contains inductance 5 mH, capacitance 2 μF and resistance
- Water falls from a height of 60m at the rate of 15 kg/s to operate a turbine
- Sound production from tape recorder makes use of
- A galvanometer of resistance 50Ω is connected to a battery of 3 V along with a resistance
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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