Polychromatic (containing many different frequencies) radiation is used in an experiment on photoelectric effect. The stopping potential (A) will depend on the average wavelength. (B) will depend on the longest wavelength. (C) will depend on the shortest wavelength. (D) does not depend on the wavelength.
Answers
Answer:d
Stopping potential is independent of wavelength
Explanation:
Answer:
(c) will be depend on shortest wavelength.
Explanation:
When light radiation falls on it the photoelectric effect is the ejection of electrons from a metal surface. For the removal of an electron from the surface, the energy of the incoming photon is used and additional energy is converted into the electron's kinetic energy.
Therefore, if a photon has greater energy, then the kinetic energy of the emitted electron will be greater. Since non-monochromatic light is used the electron with the maximum kinetic energy will generate the maximum frequency of the light component.
The stopping potential (Vs) in photoelectric effect related with the incident light frequency (v) by the following equation:
eVs=hv−ϕ.
hence, The stopping potential will be depend on shortest wavelength.