Question

The equation of a wave on a string of linear mass density 0.04 kgm^–1 is given by

The tension in the string is

(a) 6.25N 

(b) 4.0N 

(c) 12.5N 

(d) 0.5N

Answer 1

(a) : Here, linear mass density m = 0.04kgm^–1 The given equation of a wave is

where T is the tension in the string and m is the linear mass density
Equating equations (i) and (ii), we get