The principle of superposition simply says that when two waves
cross the same place, the effect at that place is the sum of the
effects of each individual wave.
We know that when two waves meet, the amplitude of what happens
at their meeting place can be anything from zero to bigger than either
wave alone. THAT's superposition in action.
When two waves meet, they interfere.
Answer: The correct answer is "when two waves meet, they interfere".
Explanation:
Interference: It is the phenomenon in which there is a superposition of the waves occur in the same medium.
The amplitude of the resulting wave is equal to the difference of the amplitudes of the waves or
it is equal to the sum of the amplitudes of waves. The amplitude of the resulting wave can be minimum and maximum.
Destructive interference: When the amplitude of the resulting wave is minimum then the destructive interference will occur.
Constructive interference: When the amplitude of the resulting wave is maximum then the constructive interference will occur.
Therefore, according to the principle of superposition, when two waves meet, they interfere.
