When additional equally spaced slits are added to an existing double-slit arrangement…
PHYSICS · Single correct · A Level · Physics · Waves · Waves
Problem
When additional equally spaced slits are added to an existing double-slit arrangement while all other experimental conditions remain the same, which of the following describes the most likely change in the interference pattern observed on a distant screen?
(a) The principal maxima become wider and less intense.
(b) The principal maxima become wider and more intense.
(c) The principal maxima become narrower and less intense.
(d) The principal maxima become narrower and more intense.