Physics · Oct / Nov 2023 · Paper 21 · Question 4
5054
As printed in the paper
The question as text
Red light of frequency 4.7 × 1014 Hz travels in air at a speed of 3.0 × 108 m / s.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
4(a)[3]
4(b)(i)[2]
4(b)(ii)[3]
4(b)(iii)[2]
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