Advertisements
Advertisements
प्रश्न
A beam of monochromatic radiation is incident on a photosensitive surface. Answer the following question giving reason :
Does the kinetic energy of the emitted electrons depend on the intensity of incident radiation?
Advertisements
उत्तर
No, the kinetic energy of the emitted electrons does not depend on the intensity of incident radiation. If the intensity of the incident light radiation is increased, then the number of incident photons falling per second on the metal surface also increases but the energy of each photon remains the same as the frequency of the radiation is not changing. The maximum kinetic energy of a photoelectron depends only on the frequency of incident radiation and not on the intensity of incident radiation.
APPEARS IN
संबंधित प्रश्न
Draw a plot showing the variation of photoelectric current with collector potential for different frequencies but same intensity of incident radiation ?
In photoelectric effect, why should the photoelectric current increase as the intensity of monochromatic radiation incident on a photosensitive surface is increased? Explain.
State how will you use this graph to detennine the value of Planck's constant.
Photoelectric effect is possible ______.
Light of wavelength 4000 Å is incident on two metals A and B. Which metal will emit photoelectrons, if their work functions are 3.8 e V and 1.6 e V respectively?
The phenomenon of photoelectric emission was observed by ______.
What happens when light falling on a material (usually a metal) causes photoelectric emission?
What are the electrons emitted when light falls on a material generally called?
In Hertz’s experimental investigation, how were electromagnetic waves produced?
What facilitated the escape of free, charged particles from the metal surface?
