Practice portal › GUJCET › Dual Nature of Matter and Radiation

Comparing de Broglie Wavelengths of Particles for GUJCET: 13 solved questions

Real GUJCET 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 2007 to 2023. No sign-in needed to read them.

What this topic asks

• Same or changed energy — 6 questions
• Matter waves in other settings — 4 questions
• Equal wavelengths and equal speeds — 3 questions

All 13 questions with solutions

• Which of the following has the longest de Broglie wavelength if they are moving with the same velocity? GUJCET 2007
• An α-particle and a deuteron are moving with velocities v and 2v respectively. What will be the ratio of thei… GUJCET 2008
• An electron and a proton are moving in the same direction with the same kinetic energy. The ratio of the de B… GUJCET 2011
• If the kinetic energy of a free electron is doubled, the new de Broglie wavelength will be times the initial… GUJCET 2014
• If an alpha particle and a deuteron move with velocities v and 2v respectively, the ratio of their de Broglie… GUJCET 2015
• The de Broglie wavelength of an atom at absolute temperature T will be . (m = mass of the atom, k_B = Boltzma… GUJCET 2015
• To increase the de Broglie wavelength of an electron from 0.5×10⁻¹⁰ m to 1×10⁻¹⁰ m, its energy should be . GUJCET 2016; GUJCET 2019
• An electron, an α-particle and a proton have the same kinetic energy. Which of these particles has the shorte… GUJCET 2022
• An electron, an α-particle and a proton have the same kinetic energy. Which of these has the longest de Brogl… GUJCET 2023
• A proton and an α-particle are passed through the same potential difference. If their initial velocity is zer… RS Academy GUJCET booklet
• The de Broglie wavelengths of a proton and an α-particle are the same. Which physical quantity should then be… RS Academy GUJCET booklet
• To reduce the de Broglie wavelength of an electron from 10⁻¹⁰ m to 0.5×10⁻¹⁰ m, its energy should be . RS Academy GUJCET booklet
• The de Broglie wavelengths of a proton and an α-particle are the same. The ratio of their velocities (vₚ:v_α)… RS Academy GUJCET booklet