A transverse wave in a string of linear mass density μ₁ is incident on a junction with a second string of linear mass density μ₂. The reflected and transmitted intensities are plotted as functions of μ₁/μ₂. Which sketch is correct?

Question

G1 Physics · Accepted Answer

Step 1: Local transverse-wave speed is v = √(T/μ). Step 2: If T varies with position, use dt = dx/v and integrate; otherwise use time = length/speed. Step 3: Use force balance to obtain the required tension where needed. Final: B: Image 2.