Q2 · 2024 · Paper 1Simple familiar1 mark
QUESTION 2
Which property of light is described by the postulates of special relativity?
(A)
The energy of light is greater when the frequency of the photons decreases.
(B)
The wavelength of light decreases as the velocity of the source increases.
(C)
The velocity of light remains constant in all inertial frames of reference.
(D)
The frequency of light changes depending on media.
WORKED SOLUTION
1 markAnswer C
ANSWER
C
Worked solution
A postulate of special relativity is that the speed of light in vacuum has the same value in every inertial frame. Option C.
Selects option C.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.