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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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- Dispersion of light is caused due to
- The work done in rotating a magnetic of magnetic moment 2 A-m² in
- Monochromatic light of wavelength 667 nm is produced by a helium neon laser
- If the terminal speed of a sphere of gold (density=19.5 kg/m³) is 0.2 m/s
- Radius of orbit of satellite of earth is R. Its kinetic energy is proportional to
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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