Dual Nature of Matter and Radiation — practice questions
18 curated practice questions from Dual Nature of Matter and Radiation (Physics JEE Main, NTA Exams) — 5 hard, 11 easy, 2 medium. Every question includes the final answer free; step-by-step worked solutions with a free account.
- A particle moving with kinetic energy E has de Broglie wavelength . If energy E is added to its energy, the wavelength…
- The energy that should be added to an electron to reduce its de-Broglie wavelength from 1 nm to 0.5 nm is :
- The energy E of a photon is equal to the kinetic energy of helium particle. If λ 1 is the de-Broglie's wavelength of…
- The momentum of a photon is p. The corresponding wavelength is
- Given below are two statements. STATEMENT - 1: A small metal ball is suspended in a uniform electric field with an…
- An electromagnetic wave of wavelength ' ' is incident on a photosensitive surface of negligible work function. If 'm'…
- Photons of 5.5 eV energy falls on the surface of metal emitting photoelectrons of maximum kinetic energy 4.0 eV. The…
- Electrons with De-Broglie's wavelength λ fall on the target in an X-ray tube. The cut-off wavelength of the emitted…
- de-Broglie wavelength of an electron emitted by a metal whose threshold frequency is 2.25 10^ 14 ~Hz when exposed to…
- In parallel plate capacitor arrangement having potential difference V_ B a radiation falls on the positive plate. If…
- In the Davisson and Germer experiment, the velocity of electrons emitted from the electron gun can be increased by:
- Given that a photon of light of wavelength 10,000 a A has energy equal to 1.23 eV. When light of wavelength 5000 a A…
- When ultraviolet rays are incident on a metal plate, then photoelectric emission is not observed. Then which of the…
- The work function of sodium is 2.3 eV. The threshold wavelength of sodium will be
- An electron (mass m) with initial velocity v =v_ n i +v_ n j is in an elastic field E =-E_ n k . If λ 0 is initial…
- The ratio of the de-Broglie's wavelength of an II -particle and a proton of the same kinetic energy
- If the energy of the photon is increased by a factor of 4, then its momentum:
- An electron is accelerated through a potential difference of 500 V. Its de-Broglie's wavelength would be: