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If the kinetic energy of the particle is increased to 16 times its previous value, the percentage change in the de-broglie wavelength of the particle is
Options
(a) 25
(b) 75
(c) 60
(d) 50
Correct Answer:
75
Explanation:
For de-Broglie wavelength, λ₁ = h / p = h / √(2mK) —–(i)
λ₂ = h / √(2m 16K) = h / 4√(2mK) = λ₁ / 4 ——-(ii)
λ₂ = 25% of λ₁
There is 75% change in the wavelength.
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Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If the nucleus ²⁷₁₃Al has nuclear radius of about 3.6 fm
- A wire of a certain material is stretched slowly by ten percent. Its new resistance
- In a n-p-n transistor about 10¹⁰ electrons enter the emitter in 2 μs,
- The input resistance of a silicon transistor is 100 W. Base current is changed
- Force required to move a mass of 1kg at rest on a horizontal rough plane
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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