Q6 · 2022 · Paper 1Simple familiar1 mark
QUESTION 6
After coherent light has been passed through a double slit, the observation of an interference pattern on a screen is explained by the
(A)
wave nature of light.
(B)
equal width of the slits.
(C)
discrete packets of photons.
(D)
distance from the slits to the screen.
WORKED SOLUTION
1 markAnswer A
ANSWER
A
Worked solution
Interference fringes arise from superposition of waves, so the double-slit pattern demonstrates the wave nature of light. Option A.
Selects option A.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.