IB
IBO
Physics
May 2015
QP-201505-Physics-P3(TZ1)-SL · Question 20
Question (excerpt):
20. This question is about a laser light on a diffraction grating. (a) With reference to population inversion, describe how laser light is produced. [4] . . . . . . . . . . . . . . . . . . . . . . . .…
20. This question is about a laser light on a diffraction grating. (a) With reference to population inversion, describe how laser light is produced. [4] . . . . . . . . . . . . . . . . . . . . . . . .…
Question Slice Image
Official Mark Scheme & Solution
The official answer and mark scheme are available to signed-in users in the PaperAce App.