Dual Nature of Matter and Radiation questions
494 published questions with worked solutions.
- A certain metallic surface is illuminated with monochromatic light of wavelength . The stopping potential for photoelectric...
- Threshold wavelength for lithium metal is 6250 Å. For photoemission, the wavelength of the incident light must be
- Work function for caesium metal is 2.14 eV. Let a beam of light of frequency 6 10^ 14 Hz be incident over the metal surface. Now,...
- What should be the velocity of an electron, so that its momentum becomes equal to that of a photon of wavelength 5200 Å?
- The voltage applied to an electron microscope to produce electrons of wavelength 0.50 Å is
- Photon and electron are given equal energy (10^ -2 J). Wavelengths associated with photon and electron are _p and _e, then...
- An electron of mass m and charge e initially at rest gets accelerated by a constant electric field E. The rate of change of...
- Two particles A_1 and A_2 of masses m_1 and m_2 (m_1>m_2) have the same de-Broglie wavelength, then
- The de-Broglie wavelength of a photon is twice the de-Broglie wavelength of an electron. The velocity of the electron is v_e= c...
- When photon of energy 4.25 eV strike the surface of a metal A, the ejected photoelectrons have maximum kinetic energy T_A eV and...
- The de-Broglie wavelength of a neutron in thermal equilibrium with heavy water at a temperature T (kelvin) and mass m, is
- The maximum velocity of the photoelectron emitted by the metal surface is v. Charge and mass of the photoelectron is denoted by e...
- The light of wavelength incident on the surface of metal having work function emits the electrons. The maximum velocity of...
- If the maximum kinetic energy of emitted electrons in photoelectric effect is 3.2 10^ -19 J and the work function for metal is...
- When photons of energy h fall on a metal plate of work function W_0, photoelectrons of maximum kinetic energy K are ejected. If...
- A metal surface is illuminated by light of given intensity and frequency to cause photoemission. If the intensity of illumination...
- When certain metal surface is illuminated with a light of wavelength , the stopping potential is V. When the same surface is...
- On a photosensitive material, when frequency of incident radiation is increased by 30%, kinetic energy of emitted photoelectrons...
- According to de-Broglie hypothesis, the wavelength associated with moving electron of mass m is _e. Using mass-energy relation...
- Light of wavelength which is less than threshold wavelength is incident on a photosensitive material. If incident wavelength is...
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