Question Detail

PHY 104 Wave and sound Objective Question

Question

According to the text, which phase differences (φ) between two waves result in destructive interference?
Options
A 0, 2π, 4π
B π, 3π, 5π
Correct Answer
C π/2, 3π/2, 5π/2
D Any multiple of 2π
Correct Answer

Option B is the correct answer.

Detailed Explanation

On page 7, under 'Interference of Waves,' it mentions: 'Note that it is not only zero phase difference that gives constructive interference, but also φ = 2π, 4π, etc., while φ= π, 3π, etc., give destructive interference.'

Hint

Look for the specific phase differences associated with destructive interference in the interference section.

Question Info