Question

Two point sources produce waves of the same wavelength that are in phase. At a point midway between the sources, you would expect to observea)constructive or destructive interference depending on the wavelength.b)destructive interferencec)no interferenced)constructive interferencee)alternating constructive and destructive interference interference

Answer 1

Answer:

d)constructive interference

Explanation:

• For any two waves being equal in wavelength and in phase with each other will always lead to a constructive interference when there is a superposition of those two waves.

• Two waves being in phase means that each corresponding highs and low are aligned with each other. Their corresponding peaks occur at the same instant and at the same position.

• The two waves that are in phase can have a phase difference of one cycle i.e. 2π because after every cycle a wave repeats itself.