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Physics doubt

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yasser37:
Hi guys


I can't seem to be able to solve any question about Diffraction Grating n paper 1


how do you do those?/


thanks

Saladin:
Would you kindly provide a sample question?

tmisterr:
use the equation

d*sinx=n*wavelength

where d is the spacing of the diffraction grating, x is the angle at which the order is seen, n is the order.
remember to use S.I units for d and wavelength so convert nm to m or mm to m e.Take Care.
and if your told a diffraction grating has for example 500 lines per metre, you have to remember this is not the spacing, to get the spacing you have to do 1/500. This should help you out a little.

~ A.F ~:
Try http://s-cool.co.uk/alevel/physics/diffraction.html

Really Helpful

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