Q18 · 2024 · Paper 1Simple familiar1 mark
QUESTION 18
Electromagnetic waves are produced by an oscillating electric charge resulting in an interaction between magnetic and electric fields. How are these two fields aligned?
(A)
parallel to each other
(B)
varied in their wavelengths
(C)
synchronised in their oscillations
(D)
intersected at the peaks of their amplitudes
WORKED SOLUTION
1 markAnswer C
ANSWER
C
Worked solution
In an electromagnetic wave the electric and magnetic fields oscillate in phase while remaining perpendicular to each other and to the direction of propagation. Option C.
Selects option C.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.