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Comparing de Broglie Wavelengths of Particles for NEET: 7 solved questions

Real NEET paper questions on comparing de broglie wavelengths of particles, part of dual nature of matter and radiation. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2002 to 2025. No sign-in needed to read them.

What this topic asks

• Matter waves in other settings — 3 questions
• Same or changed energy — 2 questions
• Equal wavelengths and equal speeds — 2 questions

All 7 questions with solutions

• The de Broglie wavelength of an electron orbiting in the n=2 state of a hydrogen atom is close to: (Given Boh… NEET 2025
• The de Broglie wavelength of a neutron of mass m in thermal equilibrium with heavy water at a temperature T (… NEET 2017
• If the kinetic energy of a particle is increased to 16 times its previous value, the percentage change in the… AIPMT 2014
• The de Broglie wavelength of neutrons in thermal equilibrium at temperature T is: NEET 2013 Karnataka
• If the momentum of an electron is changed by P, then the de Broglie wavelength associated with it changes by… AIPMT 2012 Mains
• A particle of mass 1 mg has the same wavelength as an electron moving with a velocity of 3×10⁶ m s⁻¹. The vel… AIPMT 2008
• If particles are moving with the same velocity, then which has the maximum de Broglie wavelength? AIPMT 2002