Physics

Problem

The equation of a transverse wave propagating in a string is given by

y = 0.02 \sin (x + 30t)

where,

x

and

y

are in metre and

t

is in second. If linear density of the string is

1.3 \times 10^{-4} \text{ kg/m}

, then the tension in the string is a.

0.12 \text{ N}

1.2 \text{ N}

12 \text{ N}

120 \text{ N}