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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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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When a radioactive substance emits an ∝ particle, its position in the periodic table
- A black body is at 727⁰C. It emits energy at a rate which is proportional to
- The period of oscillation of a mass M suspended from a spring of negligible mass is T
- Light of two different frequencies whose photons have energies 1eV
- A gas is suddenly expanded such that its final volume becomes 3 times
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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