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12th Standard English Medium Physics Subject Dual Nature of Radiation and Matter Creative 2 Mark Questions with Solution Part - II

12th Standard

    Reg.No. :
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Physics

Time : 00:30:00 Hrs
Total Marks : 10
    5 x 2 = 10
  1. Does the stopping potential in photoelectric emission depend upon
    (i) the intensity of the incident radiation in a photocell
    (ii) the frequency of the incident radiation?

  2. With what purpose was famous Davisson-Germer experiment with electrons performed?

  3. Which of the two :
    (i) light or
    (ii) moving material particle is concerned with de-Broglie hypothesis?

  4. If the intensity of light falling on a metal plate is doubled, what will be the effect on photocurrent and maximum kinetic energy of emitted photoelectrons?

  5. The de Broglie wavelength associated with an electron accelerated through a potential difference V is λ. What will be its wavelength when the accelerating potential is increased to 4V?

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