Angle of Refraction: 60 Degrees

[itryphysics]

Homework Statement

If the sound wave hits the cold air interface at an angle of 60, what is the angle of refraction? The speed of sound as a function of temperature can be approximated by v = (331 + 0.60T) m/s, where T is in celsius.

Homework Equations

The Attempt at a Solution

so i was thinking since the angle fo incident and angle of refraction are the same, will the angle of refraction in this care just be 60?

 

[HallsofIvy]

WHY would you think that "the angle fo incident and angle of refraction are the same"?

I think you will get more help on this in "physics homework" so I am moving it.