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Question
What are the two types of interference?
What are the two types of interference?
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Solution
Interference is a phenomenon in which two waves combine by adding their displacement together at every single point in space and time, to form a resultant wave of greater, lower, or the same amplitude.
The two types of interferences are:
- Constructive interference :
When two waves travel in the same direction and are in the same phase with each other, then their amplitude gets added, and the resultant wave is obtained. Here, the waves are said to have undergone constructive interference. - Destructive interference :
Destructive interference occurs where two waves are completely out of phase (a peak lies at the midpoint of two waves). In other words, when two waves are out-phase phase by 180 degrees or radians, they interfere destructively and cancel each other out.
Interference is a phenomenon in which two waves combine by adding their displacement together at every single point in space and time, to form a resultant wave of greater, lower, or the same amplitude.
The two types of interferences are:
- Constructive interference :
When two waves travel in the same direction and are in the same phase with each other, then their amplitude gets added, and the resultant wave is obtained. Here, the waves are said to have undergone constructive interference. - Destructive interference :
Destructive interference occurs where two waves are completely out of phase (a peak lies at the midpoint of two waves). In other words, when two waves are out-phase phase by 180 degrees or radians, they interfere destructively and cancel each other out.
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