What happens to intensity if frequency increases?
No… because if we increase frequency of light it will only increase in energy of single photon but if we increase intensity it only increase number of photon per unit area so increase in intensity does not lead to increase in frequency..
What happens when you increase the frequency of light?
Since light travels at the speed of light (wow), if you increase the frequency (number of waves per time frame) then you have to decrease the length of those waves in order to maintain the speed.
What happens to photoelectric current when frequency increases?
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.
How does the frequency of the light shining on a metal influence the photoelectric effect?
The photoelectric effect occurs when light shines on a metal. Sometimes electrons are emitted. Light of any frequency will cause electrons to be emitted. The more intense the light the more kinetic energy the emitted electrons will have.
Why does frequency increase as wavelength decreases?
The wavelength is inversely proportional to frequency of the wave. Which means, waves with higher frequencies have shorter wavelengths, and lower frequencies have longer wavelengths.
Does the frequency of light change?
Frequency doesn’t change because it depends on travelling of waves across the interface. But speed and wavelength change as the material on the other side may be different, so now it might have a longer/shorter size of wave and so the number of waves per unit time changes. Here is the bookwork answer.
How does intensity of light increase?
You can increase the intensity of the radiation by either increasing the number of photons in it or increasing energy of each photon, or both.
Why does increasing frequency increase kinetic?
But if the intensity is constant and the frequency changes, the kinetic energy of the photoelectrons changes, so their velocity changes. So if the frequency increases, the kinetic energy of the photons increases so they move faster.
What happens to the frequency of a wave when the wavelength is decreased?
Although the wave slows down, its frequency remains the same, due to the fact that its wavelength is shorter. When waves travel from one medium to another the frequency never changes.
What happens as you increase the frequency of light?
In the photoelectric effect, what happens as you increase the frequency of light keeping the same intensity constant? E=hf, so as you increase the frequency of light, the energy of each photon hitting the metal surface is greater. Thus the electrons liberated from the surface of the metal have a greater maximum kinetic energy.
What is the relationship between light intensity and photoelectric effect?
The photoelectric current is directly proportional to the light intensity. The kinetic energy of the photoelectrons is directly proportional to the light frequency. The stopping potential is directly proportional to the frequency and the process is instantaneous. Factors affecting Photoelectric Effect
Why does the photoelectric effect not occur when red light strikes metal?
The photoelectric effect does not occur when the red light strikes the metallic surface because the frequency of red light is lower than the threshold frequency of the metal. The photoelectric effect occurs when green light strikes the metallic surface and photoelectrons are emitted.
What is the relationship between threshold frequency and photoelectric current?
The threshold frequency varies with material, it is different for different materials. The photoelectric current is directly proportional to the light intensity. The kinetic energy of the photoelectrons is directly proportional to the light frequency.