Is it always true that for two sources of equal intensity, the number of photons emitted in a given time are equal?

Two monochromatic beam A and B of equal intensity I,hit a screen.The number of photons hitting the screen by beam A is twice that by beam B.Then what inference can you make about their frequencies?

Two matrices are equal if they have same number of rows and same number of columns .

Square of the resultant of two forces of equal magnitude is equal to three times the product of their magnitude. The angle between them is

"with increase in frequency of light incident number of electrons emitted increase"-True or false?

Nitrogen laser produces a radiation at a wavelength of 337.1 nm if the number of photons emitted is 5.6 xx 10^(24) calculate the power of this laser.

An electric bulb of 100 W converts 3% of electrical energy into light energy.If the wavelength of light emitted is 6625 Å,the number of photons emitted in 1 s is……….. (h=6.625xx10^(-34))JS

If the efficiency of an electric bulb of 1 watt is 10% what is the number of photons emitted by it in one second ?(The wavelength of light emitted by it is 500 nm.)( h=6.625xx10^(-34)J.s).

A 100 wart bulb emits monochromatic light of wavelength 400 bn, Calculate the number of photons emitted per second by the bulb.

Let (n_r) and (n_b) be respectively the number of photons emitted by a red bulb and a blue blub of equal power in a given time.

In a photoelectric effect set up, a point source of light of power 3.2 xx10^(-3) W emits monochromatic photons of energy 5eV .The source is located at a distance of a stationary metallic sphere of work function 3eV and radius 8xx10^(-3)m .The efficiency of photoelectron emission is one for every 10^(6) incident photons.Assume that the sphere is isolated and initially neutral and the photoelectrons are initially swept away after emission. Find the number of photons emitted per second