every physics helpers are not getting any responses. can someone help on physics questions pleases???

Sorry, I had to train Girl Scout leaders tonite. I just got online.

Also, to get priority help, show your efforts.

I agree. No one is helped me on any of my physics questions I posted.

Same here.

Because physics sucks and no one likes it

given a pair of slits separeted by 0.2mm, illuminated by gren light (500nm) in acoherant parallel beam, find the separetion of the two first order green frings on screen one meter from the slits

NO2