The conservation of momentum (or explaining how and where it is involved) is not really an issue here. The total momentum of the whole measuring apparatus would need to be conbnsidered. The incident photons carry momentum which will turn up as an increase in momentum of the equipment or even the Earth. The momentum of the original photons also needs to be considered with regard with where they were originally produced.Karan Punjabi said:according to law of conservation of linear momebtum
The photoelectric effect is the phenomenon where certain materials emit electrons when light is shone on them. This was first discovered by Heinrich Hertz in 1887 and was later explained by Albert Einstein in his theory of light as particles (photons) rather than waves.
When light is shone on a material, it transfers its energy to electrons within the material. If the energy of the light is high enough, it can knock the electrons out of the material, resulting in a flow of current. This process is known as the photoelectric effect.
The photoelectric effect was a crucial experiment that helped validate Einstein's theory of light as particles. It also led to the development of technologies such as solar panels, photodiodes, and photocells, which are used in various applications such as solar energy and optical sensors.
The photoelectric effect is affected by the frequency and intensity of the incident light, as well as the properties of the material, such as its work function and the number of free electrons. Increasing the frequency and intensity of the light will result in a higher current, while increasing the work function or decreasing the number of free electrons will decrease the current.
No, the photoelectric effect cannot be explained by classical physics. Classical physics predicted that increasing the intensity of light would result in an increase in the number of ejected electrons, but this was not observed in the photoelectric effect. It was only through Einstein's theory of light as particles that the phenomenon could be accurately explained.