Physics · Oct / Nov 2016 · Paper 21 · Question 4
5054
As printed in the paper
The question as text
A lamp is positioned at the bottom of a small pool of water. The critical angle for light passing from water into air is 49°.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
4(a)[2]
4(b)[3]
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