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Stopping potential is the negative potential of the opposite electrode when the photo-electric current falls to zero. The threshold frequency is described as the frequency when the photoelectric current stops below a particular frequency of incident light. The photoelectric effect establishes the quantum nature of radiation.
Definition. The stopping potential is defined as the potential necessary to stop any electron (or, in other words, to stop even the electron with the most kinetic energy) from reaching the other side. What happens in photoelectric effect is that, an incident radiation strikes the surface of the metal. Now, as the incident photons with a certain ...
It is calculated experimentally using the stopping potential. Please read our article on Lenard’s observations to understand this part. Stopping potential = ev 0 = 1/2mv 2 max. Thus, Einstein explained the Photoelectric effect by using the particle nature of light. The below video is a quick revision of what is photoelectric effect:
Q 5. Light wavelength 300nm in incident on a photosensitive surface. The stopping potential for emitted photoelectrons is 2.5V. The wavelength of incident light is reduced to 150nm. The stopping potential of emitted photoelectrons is. View Solution. Click here:point_up_2:to get an answer to your question :writing_hand:define the term stopping ...
The dimension of stopping potential 𝑉 0 in photoelectric effect in units of Planck’s constant (h), speed of light (c), and gravitational constant (G) and Ampere (A) is View Solution Q 4
The minimum retarding potential means the negative potential of the anode of a photoelectric tube for which photoelectric current stops or becomes zero is called stopping potential. Stopping potential does not depend on the intensity of incident light. On increasing intensity, the value of saturated current increases, whereas the stopping ...
The dimensions of the stopping potential in terms of Planck's constant, Gravitational constant, speed of light and Ampere is, dimensions of [V] = h a I b G c c d where a,b,c, and d are the integers. Note that unit of stopping potential is 𝑉 0 volt. Know that. Step 2: Planck's Constant Dimensional Formula: We know that, Energy of photon is ...
Figure (42-E2) is the plot of the stopping potential versus the frequency of the light used in an experiment on photoelectric effect. Find (a) the ratio h/e and (b) the work function. View Solution
For photoelectric effect in a metal, the graph of stopping potential V 0 (i n V) versus frequency ν (i n Hz) of the incident radiation as shown in figure. From the graph, find threshold frequency and work function of the metal.
Calculate the stopping potential. When photons of wavelength λ1 are incident on an isolated sphere suspended by an insulated thread, the corresponding stopping potential is found to be V. When photons of wavelength λ2 are used, the corresponding stopping potential was thrice the above value. If light of wavelength λ3 is used, calculate the ...
