Hello(adsbygoogle = window.adsbygoogle || []).push({});

Could someone please help me with this question,,I have no idea how to work it out and have looked through my text book/notes and arrrr still can't do it...

A beam of photons encounters a double slit that has a separation distance d = 34.0 μm. Note: the diagram is not drawn to scale...(the diagram just shows a slit with a detector array 'x' meters away)

a)...if a single photon in the beam has an energy of 16.81x10^-19J what is it's energy in eV?

I calculated that to be 10.5eV but then its the next one I cant do as I have no other info. besides seperation distance and energy!!!

b) What is it's wavelength?

???????

Any help would be much appreciated

Thank you

physics_06er

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Double Slit question

**Physics Forums | Science Articles, Homework Help, Discussion**