How does frequency affect rate of emission of electrons?
when increasing the frequency the rate of the electrons emitted will increase. when increasing the intensity nothing will happen (the rate will not increase).
What happens to the number of electrons as frequency increases?
The maximum kinetic energy of the emitted electron increases as the frequency of the incident light increases. The number of electrons emitted is proportional to the intensity of the incident light. □ Einstein explained the photoelectric effect experimental result using light quanta, photons.
How does decreasing the wavelength affect the rate of electrons being ejected?
For photoelectric effect to occur, the energy of the photon must be greater than the work function. As the wavelength of the incident light decreases but is lower than the cut-off wavelength, the maximum kinetic energy of the photo electrons increases.
Why the rate of emission of electrons changes as the frequency of the incident light is increased?
When a higher intensity light falls on the metal plate, more number of photons hit the plate and due to this more number of electrons are ejected. As more number of electrons are ejected per unit time, the photocurrent increases.
Why can only certain frequencies of em cause the photoelectric effect of certain metals?
Each metal holds onto electrons with different strengths so each metal requires a different amount of energy to free an electron. The energy of a wave of light gets higher as the frequency gets higher.
What can be done to increase emission of electrons from surface of metal?
Since the current is proportional to the average velocity of the electrons, the current will increase if the average velocity of the electrons is greater. Therefore, if we increase the frequency of the incident light, the photoelectric current will increase.
Why does energy increase with frequency?
The shorter the wavelengths and higher the frequency corresponds with greater energy. So the longer the wavelengths and lower the frequency results in lower energy. The energy equation is E = hν. The energy equation is a direct relationship between frequency and energy because as frequency increases, so does energy.