Q6 · 2021 · Paper 1Simple familiar1 mark
QUESTION 6
Electromagnetic radiation is
(A)
extremely high-frequency radiation emitted from the nucleus of some radionuclides.
(B)
the emission of energy as waves or particles, especially high-energy particles, that causes ionisation.
(C)
a wave of energy produced by an oscillating electric charge, resulting in mutually perpendicular electric and magnetic fields.
(D)
radiant energy consisting of synchronised oscillations of electric and magnetic fields, or electromagnetic waves, propagated at the speed of light in a vacuum.
WORKED SOLUTION
1 markAnswer D
ANSWER
D
Worked solution
Electromagnetic radiation consists of mutually perpendicular oscillating electric and magnetic fields propagating through space at in vacuum. Option D.
Selects option D.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.