Dual Nature of Matter and Radiation questions
494 published questions with worked solutions.
- An electron is accelerated through a potential difference of 10,000 V. Its de Broglie wavelength is, (nearly) : (m_e = 9 10^ -31...
- The number of photoelectrons emitted for light of frequency (higher than the threshold frequency _0) is proportional to
- The stopping potential for a photoelectric emission process is 10V. the maximum kinetic energy of the electrons ejected in the...
- When a metallic surface is illuminated with a radiation of wavelength 'λ', the stopping potential is 'V'. If the same surface is...
- A work function of metal 'A' and 'B' are in the ratio 1 : 2. If light of frequency 'f' and '2f' is incident on surface 'A' and...
- The frequency of incident light falling on a photosensitive material is doubled, the K.E. of the emitted photoelectrons will be
- When the electron orbiting in hydrogen atom in its ground state moves to the third excited state, the de-Broglie wavelength...
- The ratio of the wavelength of a photon of energy 'E' of that of the electron of same energy is (m = mass of an electron, c =...
- When photons of energy h fall on a photosensitive surface of work function E_0, photoelectrons of maximum kinetic energy k are...
- The Kinetic energy of an electron is increased by 2 timed, then de-Broglie wavelength associated with it changes by a factor
- A photosensitive metallic surface has work function . If photon energy 3 falls on the surface, the electron comes out with a...
- The threshold frequency of metal is 'F_0'. When light of frequency 2F_0 is incident on the metal plate, the maximum velocity of...
- For a photosensitive material work function is 'W_0' and stopping potential is 'V'. the wavelength of incident radiation is (h=...
- In Photoelectric effect, the kinetic energy of electrons emitted from the metal surface depends upon
- A photoelectric surface is illuminated successively by monochromatic light of wavelength '( )' and ' ( 2 )'. If the maximum...
- In photoelectric experiment the stopping potential was measured to be 'V_1' and 'V_2' volt with incident light of wavelength ' '...
- In case of photoelectric emission from certain metal, the cut off frequency is ' '. If radiation of frequency '2 ' is incident on...
- Energy of photon whose frequency is 10^ 12 MHz, is [Planck's constant, h = 6.63 10^ -34 Js, e = 1.6 10^ -19 C]
- The work functions for metals A, B and C are 1.92 eV, 2.0 eV and 5 eV respectively. The metal(s) which will emit photoelectrons...
- An electron of mass 'm' and a photon have same energy E. The ratio of the de-Broglie wavelengths associated with them is (c =...
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