Answer available
Class 12 · Physics · Dual Nature of Radiation and Matter
State the de Broglie hypothesis and give the expression for the wavelength of a moving particle.
3 marksMediumShort answer
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5 questions
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Class 12 · Physics · Dual Nature of Radiation and Matter
The work function of a metal is 2 eV. Find the threshold wavelength. Take h = 6.63 × 10−34 J s and c = 3 × 108 m s−1.
3 marksMediumNumerical
- Answer available
Class 12 · Physics · Dual Nature of Radiation and Matter
State the laws of the photoelectric effect and write Einstein's photoelectric equation.
3 marksMediumShort answer
- Answer available
Class 12 · Physics · Dual Nature of Radiation and Matter
What is stopping potential, and how does it depend on the intensity and the frequency of the incident light?
3 marksMediumShort answer
- Answer available
Class 12 · Physics · Dual Nature of Radiation and Matter
Light of frequency 1015 Hz falls on a metal of work function 2 eV. Find the maximum kinetic energy of the photoelectrons. Take h = 6.63 × 10−34 J s.
3 marksMediumNumerical