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Chapter 4. Principles of Quantum Mechanics > Multiple Choice Questions

Multiple Choice Questions

  1. Quantum theory successfully explains:     ( )
    1. interference and diffraction
    2. polarization and black body radiation
    3. photoelectric effect and Compton effect
    4. all
  2. Dual nature [particle and wave] of matter was proposed by:     ( )
    1. de Broglie
    2. Planck
    3. Einstein
    4. Newton
  3. The wavelength associate with a particle of mass ‘m’ moving with a velocity ‘v’ is [h = Planck’s constant]     ( )
    1. images
    2. images
    3. images
    4. images
  4. The wavelength of de Broglie wave associated with an electron when accelerated in a potential difference ‘V’ is [h = Planck’s constant, e = charge on an electron]     ( )
    1. images
    2. images
    3. images
    4. images
  5. When an electron is accelerated in a potential difference ‘v’, then the de Broglie wave associated with it in nm is:     ( )
    1. images
    2. images
    3. images
    4. images
  6. If m0 is the rest mass of an electron, accelerated through a potential difference ‘v’, then its relativistically corrected wavelength is [C = velocity of light]     ( )
    1. images
    2. images
    3. images
    4. images

  

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