A wave created by a certain source travels from medium 1 int

A wave created by a certain source travels from medium 1 into another medium 2. It is noticed that its velocity is faster in medium 2 than in medium 1. Three students are discussing what happens to the properties of the wave as it moves into medium 2. Student 1: The frequency of this wave increases as this waves moves into medium 2 in order to keep the equation of the velocity of a wave valid. Student 2: No, the frequency of the wave will remain the same as it is only dependent on the source, it will be the wavelength that will increase in order to keep the equation of the velocity of a wave valid. Student 3: No, you are both wrong. Both parameters will adjust in order to keep the equation of the velocity of a wave valid Which of these students, if any, do you agree with? Justify your response with words and/or equations.

Solution

STUDENT 2 : is correct.

As the frequency of a wave is the property of the source, not the medium.
So, from the equation Wave Velocity = wavelength x frequency. we .can see that if frequency remains conatant, then to increase the wave velocity, wavelength must increase.