Counting Particles Passing Through a Hole

[Endarmacional]

I want to find out how many paricles on random move passing through a little hole ?
There is no condition or force acting on eachof them. Thanks guys

 

[NEWO]

E=h\nu

which is the energy for one photon, then can you see what the energy of many photons is??

E=nh\nu

where n is the number of photons, hence rearrage to get n,

i presume the photons get diffracted as they go through the hole in which case

E=\frac{nhc}{\lambda}

where lambda is
\lambda=2d\sin\theta

because you haven't given information on what you are given ie what values you have, I will also give you this for a particle,

E=\frac{n\hbar^{2}k^{2}}{2m}

where

k=\frac{2\pi}{\lambda}

and as before \lambda=2d\sin\theta



also when asking questions, it is best to put more into them, your own workings and understanding and also a bit more in about the question, it is not easy to understand what you are asking with only 2 lines of writing

best wishes

Newo