PHYA2 diffraction grating question help? label diagram

I am not sure how to answer this exam question for unit 2 physics. please help

PHYA2 question.png

d is the distance between the two slits and lambda is the line in the right angled triangle opposite theta :smile:

Original post by theviolinxx

d is the distance between the two slits and lambda is the line in the right angled triangle opposite theta :smile:

Thank you very much! :smile:

Is d the distance between the center of the the two slits?

Original post by Music With Rocks

Thank you very much! :smile:

Is d the distance between the center of the the two slits?

Yes that's right :smile:

Original post by theviolinxx

Yes that's right :smile:

Thank you

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