In a inser tube all the photons

In a laser tube all the photons

A source of light is emitting photons. Does all the photons emitted have the same energy? Is the source monochromatic? Explain.

Suppose the 10^19 photons emitted per second from the 100 W lightbulb in were all focused onto a piece of black paper and absorbed. (a)Calculate the momentum of one photon and (b)estimate the force all these photons could exert on the paper.

Suppose the 10^19 photons emitted per second from the 100 W lightbulb in were all focused onto a piece of black paper and absorbed. (a)Calculate the momentum of one photon and (b)estimate the force all these photons could exert on the paper.

Statement-1 : The minimum wavelength of x- rays emitted by an x- ray tube is inversely proportional to the voltage applied across the tube. Statement-2 : This is because the entire energy of the electron is transferred to the photon.

Statement-1 : In photoelectric effect, the number of photoelectrons emitted is always equal to number of photons incident. and Statement-2 : All the photons falling on the surface will eject photoelectron, is not necessary.

Statement-1 : In photoelectric effect, the number of photoelectrons emitted is always equal to number of photons incident. and Statement-2 : All the photons fallin on the surface will eject photoelctron, is not necessary.

Statement-1 : In photoelectric effect, the number of photoelectrons emitted is always equal to number of photons incident. and Statement-2 : All the photons fallin on the surface will eject photoelctron, is not necessary.