Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Dual Nature of Radiation and Matter question

2009 · Q144
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Physics
  4. /Dual Nature of Radiation and Matter
  5. /2009 · Q144

Dual Nature of Radiation and Matter question

2009 · Q144

NEETPhysicsDual Nature of Radiation and MatterMCQ+4 / −1
The number of photo electrons emitted for light of a frequency υ\upsilonυ (higher than the threshold frequency υ0{\upsilon _0}υ0​) is proportional to
  1. A
    threshold frequency (υ0)\left( {{\upsilon _0}} \right)(υ0​)
  2. B
    intensity of light
  3. C
    frequency of light (υ0)\left( {{\upsilon _0}} \right)(υ0​)
  4. D
    υ−υ0\upsilon - {\upsilon _0}υ−υ0​
View written solutionFree

Correct answer: B

The number of photoelectrons emitted is proportional to the intensity of incident light.

Saturation current ∝\propto∝ intensity.

PreviousNext

More from Dual Nature of Radiation and Matter

  • Monochromatic light of wavelength 667 nm is produced by a helium neon laser. The power emitted is 9 mW. The number of photons arriving per sec. on the average at a target irradiated by this beam is2009 · MCQ
  • The figure shows a plot of photo current versus anode potential for a photo sensitive surface for three different radiations. Which one of the following is a correct statement? Includes diagram2009 · MCQ
  • A particle of mass 1 mg has the same wavelength as an electron moving with a velocity of 3 × 106 m s−1. The velocity of the particle is2008 · MCQ
  • The work function of a surface of a photosensitive material is 6.2 eV. The wavelength of the incident radiation for which the stopping potential is 5 V lies in the2008 · MCQ
  • In the phenomenon of electric discharge through gases at low pressure, the coloured glow in the tube appears as a result of2008 · MCQ
  • Monochromatic light of frequency 6.0 × 1014 Hz is produced by a laser. The power emitted is 2 × 10−3 W. The number of photons emitted, on the average, by the source per second is2007 · MCQ
  • A beam of electron passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off, and the same magnetic field is maintained, the electrons move2007 · MCQ
  • A 5 watt source emits monochromatic light of wavelength 5000 A∘​. When placed 0.5 m away, it liberates photoelectrons from a photosensitive metallic surface. When the source is moved to a distance of 1.0 m, the…2007 · MCQ