If the kinetic energy of the particle is increased to 16 times its previous value

If The Kinetic Energy Of The Particle Is Increased To Physics Question

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.

Related Questions:

  1. Two slits in Young’s experiment have widths in the ratio 1:25. The ratio of intensity
  2. A block of mass m moving at a velocity v collides with another block of mass 2m
  3. The self-inductance of a coil having 500 turns is 50mH. The magnetic flux
  4. A coil of 100 turns carries a current of 5 mA and creates a magnetic flux of 10⁻⁵ Wb.
  5. The power factor of an AC circuit having resistance R and inductance L connected

Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*