Q43 · Practice questionSimple familiar1 mark
QUESTION 43
Monochromatic light passes through two narrow slits and a detector screen records alternating bright and dark bands. Which feature of light is most directly demonstrated by this observation?
(A)
Wave interference
(B)
Quantised electric charge
(C)
Mass–energy equivalence
(D)
Baryon-number conservation
WORKED SOLUTION
1 markAnswer A
ANSWER
A
Worked solution
The alternating bands arise from constructive and destructive interference, which is a wave phenomenon.
Select the correct option.
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