Question

According to the principle of superposition, _____.

when two waves meet, they reflect
when two waves meet, they interfere
when a wave meets a boundary, the angle of the reflected wave is equal to the angle of the incident wave
when a wave meets a boundary, the angle of the refracted wave will be equal to the angle of the incident wave

Answer 1

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 2

Answer: The correct answer is "when two waves meet, they interfere".

Step-by-step 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.