Question

Path difference between two waves, having wavelength λ and undergoing constructive
interference is ____________.

Answer 1

Answer:

1 λ.

Explanation:

the path difference is  1 λ.

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Answer 2

Path difference between two waves undergoing constructive  interference is $m\lambda$

Explanation:

Path difference is defined as the distance covered by the wave from crest to consecutive crest or trough to consecutive trough.

Constructive  interference is the condition of getting maximum intensity. The condition for this type of interference is there are at least two waves, the waves are in different directions, and the waves overlap.

For constructive interference, the path difference is given by :

$\Delta l=m\lambda$

m is the order

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