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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
- A monoatomic gas is suddenly compressed to (1/8)th of its initial volume adiabatically.
- A thin glass(refractive index 1.5) lens has optical power of -5D in air.
- The tension in a piano wire is 10 N. What should be the tension in the wire to produce
- What is the energy released by fission of 1 g of U²³⁵?
- A bullet is shot from a riffle. As a result the rifle recoils.The kinetic energy of riffle
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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