Basic Maths and Units and DimensionsMedium
Question
String 1 is connected with string 2. The mass per unit length in string 1 is μ1 and the mass per unit length in string 2 is 4μ1. The tension in the strings is T. A travelling wave is coming from the left. What fractionof the energy in the incident wave goes into string 2 ?
Options
A.1/8
B.4/9
C.2/3
D.8/9
Solution
Ar = 
Ai; v2 = 
∴ energy reflected =
× energy incident
Ai; v2 = ∴ energy reflected =
× energy incident Create a free account to view solution
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