Dual Nature of Matter and Radiation questions
494 published questions with worked solutions.
- Which of the following phenomenon does not support the wave nature of light?
- Quantum nature of light is not supported by the phenomenon of
- The wave theory of light does not explain
- A parallel beam of fast moving electrons is incident perpendicular on a narrow slit. Distance between slit and screen is large....
- The photoelectric threshold wavelength for a metal surface is 6600 A. The work function for this metal is
- Light of wavelength 4000 Å is incident on a metal plate whose work function is 2 eV. The maximum KE of the emitted photoelectron...
- The frequency of the incident light falling on a photosensitive metal plate is doubled, the kinetic energy of the emitted...
- If the work function for a certain metal is 3.2 10^ -19 J and it is illuminated with light of frequency = 8 10^ 14 Hz, the...
- Ultraviolet light of wavelength 300 nm and intensity 1.0 W ,m^ -2 falls on the surface of a photosensitive material. If one per...
- Light of wavelength 4000 Å is incident on a sodium surface for which the threshold wavelength of photoelectrons is 5420 Å. The...
- Photoelectric emission occurs only when the incident light has more than a certain minimum
- A photosensitive metallic surface has work function . If photon of energy 3 fall on this surface, the electron comes out with a...
- The work functions for metals A, B and C are respectively, 1.92 eV, 2.0 eV and 5 eV. According to Einstein's equation, the...
- Silver has a work function of 4.7 eV. When ultraviolet light of wavelength 100 nm is incident on it, a potential of 7.7 V is...
- The maximum kinetic energy of the photoelectrons depends only on
- For a certain metal, = 2 _0 and the electrons come out with a maximum velocity of 4 10^ 6 m ,s^ -1 . If the value of = 5 _0, then...
- A metal Surface of work function 1.07 eV is irradiated with light of wavelength 332 nm. The retarding potential required to stop...
- The difference between kinetic energies of photoelectrons emitted from a surface by light of wavelength 2500 Å and 5000 Å will be
- Light of wavelength strikes a photoelectric surface and electrons are ejected with an energy E. If E is to be increased to...
- The work function for Al, K and Pt is 4.28 eV, 2.30 eV and 5.65 eV, respectively, Their respective threshold frequencies would be
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