Table of Contents
- 1 What is the relation between stopping potential and frequency?
- 2 What does the slope of a photoelectric graph represent?
- 3 What is the relation between wavelength and stopping potential?
- 4 How does wavelength affect stopping potential?
- 5 What type of graph would you get between stopping potential and frequency of incident light?
- 6 What is stopping potential?
What is the relation between stopping potential and frequency?
For a given intensity of radiation, the stopping potential depends on the frequency. Higher the frequency of incident light higher the value of stopping potential.
What does the slope of a photoelectric graph represent?
which means, slope is the ratio of Planck’s constant to charge of electrons. Therefore, the correct answer is Option (D). Additional Information: The photoelectric effect is the emission of electrons when electromagnetic radiation, such as light, hits a material.
What is the slope of graph of stopping potential versus frequency of incident radiations?
The slope of graph of stopping potential of an emitter verses frequency of incident radiation is observed to be a constant. The value of slope is measured to be h/e which is independent of nature of emitter.
What is the slope of frequency and energy?
The slope of the straight line obtained by plotting the kinetic energy as a function of frequency above the threshold frequency is just Planck’s constant, and the x-intercept, where 12mv2=0, is just the work function of the metal, Φ=hν0.
What is the relation between wavelength and stopping potential?
Given: Stopping potential = Vs = 2 V, wavelength of incident light = λ = 2000 Å = 2000 x 10-10 m, speed of light = c = 3 x 108 m/s, Planck’s constant = h = 6.63 x 10-34 Js, Charge on electron = e = 1.6 x 10-19 C.
How does wavelength affect stopping potential?
The shorter wavelength light produces higher stopping potentials. This validates the fact that higher energy frequencies (shorter wavelength) have more energy to give to the photoelectrons, thus the photoelectrons receive more energy from higher frequencies and are able to leave the metal with a higher kinetic energy.
What is stopping potential in photoelectric effect?
Stopping potential is the minimum negative voltage applied to the anode to stop the photocurrent. The maximum kinetic energy of the electrons equal the stopping voltage, when measured in electron volt.
How does the slope m relate to Planck’s constant?
The slope is the value for m. The value for Planck’s constant is the slope of your graph multiplied by e/c where e is the electronic charge (1.6022 x 10-19 C) and c is the velocity of light (2.998 x 108 m/s).
What type of graph would you get between stopping potential and frequency of incident light?
Choose the correct option for the graph between the frequency of incident light and the stopping potential. Hence, it is a straight line.
What is stopping potential?
What is relation between frequency and wavelength?
Frequency and wavelength are inversely proportional to each other. The wave with the greatest frequency has the shortest wavelength. Twice the frequency means one-half the wavelength. For this reason, the wavelength ratio is the inverse of the frequency ratio.