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

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.

sonar - device which is used to find the submit submarines, sankalp ship. sonar waves consists of a transmitter and detector which are installed in the observation centre on board of a ship. the ultrasonic waves are sent into the sea at high frequency about 1000 khz in all direction.

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).