Quantum Physics Unit 1 Most Important Questions For BSc 3rd Year
Quantum mechanics physics
~ Unit-1 "Introduction To Quantum Mechanics"
Q-1) What are limitations of old quantum theory ? Explain wave particle dualisum by giving example.[CBLU-2019,2022 IGU-2021 MDU-2011,2013,2016,2017,2017,2021]
Q-2) Explain group-velocity and show that for a material particle in motion the group-velocity is same as the same velocity of the particle ? [IGU-2021 MDU-2015,2019,2021]
OR
Define the term wave velocity, particle-velocity, group-velocity and drive the relation b/w
[1] Group-velocity and Particle-velocity,
[2] Wave-velocity and Particle-velocity,
[CBLU-2022 MDU-2013,2019,2022 ]
Q-3) State Heisenberg's Uncertanity principle and explain it in view of the de-Broglie wave concept./Gamma ray microscope,
[CBLU-2021 MDU-2013,2017,2021]
Q-4) Explain Photoelectric effect? (Equation, law's of Emision)
[IGU-2019 MDU-2015,2016,2018,2021,2022]
Q-5) What is Compton effect? Drive an expression for the change in wavelength of a Photon after scattering from an electron also explain how this effect can be verited experimentally. [IGU-2019,2021 CBLU-2019,2021,2022 MDU-2011,2015,2016,2017,2018,2019,2022]
Q-6) An electron is accelerated from rest by a potential difference V. Calculate the de-Brogli wavelength.[ MDU-2021]
Q-7) Write notes on the following, 1-Group velocity and de-Brogli wave
2-concept of particle in classical and Quantum mechanics. [MDU-2019]
Q-8) Explain dual nature of matter and de-Brogli concept of matter wave. Describe G.P thomson's experiment to illustrate wave nature of matter. [IGU-2019 MDU-2012,2018]
Q-9) Define phase velocity and group-velocity? Obtain expression both and drive the relation b/w them.[CBLU-2019,2021 MDU-2018,2021]
Q-10) State and explain the Heisenberg's uncertanity principle ? Application- Ground state energy of a linear harmonic oscellator ? [CBLU-2019]
Q-11) What are de-Brogli waves? Drive the expression for the de-Brogli wavelength of a particle in term of its kinetic energy. [MDU-2016]
Q-12) What is Heisenberg uncertanity principle? Apply this principle to find the radius of the Bohr's first orbit. [MDU-2015,2016,2022]
Q-13) Why the wave nature of matter is not apparent in oue daily life? [MDU-2022]
Bsc final year organic chemistry
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