De-Broglie's Duality Hypothesis Quiz
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Questions and Answers

According to de-Broglie, what is associated with every moving particle?

  • Particle accelerator
  • Wave (correct)
  • Electric charge
  • Magnetic field

    • What is the relationship between the energy of a photon and its frequency?

  • $E = \frac{hc}{\lambda}$
  • $E = h\nu$ (correct)
  • $E = pc$
  • $E = mc^2$

    • How does the de-Broglie wavelength change with the speed of a particle?

  • Decreases (correct)
  • Increases
  • Remains constant
  • Becomes zero

    • What does de-Broglie's relation state about the de-Broglie wavelength for particles?

    <p>It is inversely proportional to mass</p> Signup and view all the answers

    In the context of de-Broglie's hypothesis, what is NOT true about matter waves?

    <p>They are electromagnetic in nature</p> Signup and view all the answers

    How does the de-Broglie wavelength change with the mass of a particle?

    <p>Increases</p> Signup and view all the answers

    What formula is used to calculate the mass of a particle when its velocity is comparable to the velocity of light?

    <p>m = 2201v/c</p> Signup and view all the answers

    What is the energy acquired by a particle accelerated through a potential difference V?

    <p>E = eV</p> Signup and view all the answers

    Which formula represents the de-Broglie wavelength of an electron accelerated through a potential difference V?

    <p>λ = V12.27A</p> Signup and view all the answers

    What are the values used for mass (m), charge (e), and Planck's constant (h) in the calculations of de-Broglie wavelength?

    <p>m = 9.1 × 1031 kg; e = 1.6 × 1019 C; h = 6.62 × 1034 Js</p> Signup and view all the answers

    If an electron is accelerated through a potential difference of 200 volts, what will be the approximate de-Broglie wavelength?

    <p>1.227 A</p> Signup and view all the answers

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