Dual Nature of Matter and Radiation questions
494 published questions with worked solutions.
- The de-Broglie wavelength ( ) of a particle
- Photoelectric emission is observed from a metallic surface for frequencies _1 and _2 of the incident light rays ( _1> _2). If the...
- When the electron orbiting in hydrogen atom goes from one orbit to another orbit (principal quantum number = n), the de-Broglie...
- Photoelectric emission takes place from a certain metal at threshold frequency v. If the radiation of frequency 4v is incident on...
- The de-Broglie wavelength of a neutron at 27^0C is ' _0'. What will be its wavelength at 927^0C ?
- When a photosensitive metal surface is illuminated with radiation of wavelength ' _1', the stopping potential is 'V_1'. If the...
- From photoelectric effect experiment, select the correct statement.
- Electron beam when accelerated by a voltage of 10 kV, has a de-Broglie wavelength ' '. If the voltage is increased to 20 kV then...
- The energy that should be added to an electron to reduce its de-Broglie wavelength from to 2 is n times the initial energy. The...
- If the frequency of incident light in a photoelectric experiment is doubled, then stopping potential will
- An electron of mass 'm' and charge 'e' initially at rest gets accelerated by a constant electric field 'E'. The rate of change of...
- If the electron in hydrogen atom jumps from third Bohr orbit to ground state directly and the difference between energies of the...
- When a metal surface is illuminated by light of wavelength _1 and _2, the maximum velocities of photoelectrons ejected are V and...
- Let E_ e and E_ p represents kinetic energy of electron and photon respectively. If de-Broglie wavelength of a photon is twice...
- Light of incident frequency 3 times the threshold frequency is incident on a photosensitive material. If the incident frequency...
- A photosensitive surface has work function . If photon of energy 3 falls on this surface, the electron comes out with maximum...
- A 10 kW transmitter emits radio waves of wavelength 500 m. The number of photons emitted per second by the transmitter is of the...
- This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes...
- Photoelectrons are ejected from a metal when light of frequency v falls on it. Pick out the wrong statement from the following.
- This question has statement 1 and statement 2. Of the four choices given after the statements, choose the one that best describes...
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