Energy Conservation in Interference – Rankers Physics

Principle of Superposition, Interference and Beats: Practice Problem & Solution

Assertion (A): Energy is created during constructive interference and destroyed during destructive interference. Reason (R): The positions of constructive interference are sources of energy while the positions of destructive interference are sinks of energy.  
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(A) is true but (R) is false
Both (A) and (R) are false

Solution Explained:

To solve this problem, we apply the core principles of Principle of Superposition, Interference and Beats. Understanding the underlying formula is key to arriving at the correct answer below:

Energy is always conserved in interference phenomena; it is merely redistributed, not created or destroyed. Thus, both Assertion (A) and Reason (R) are false.

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