Question

A transverse wave travelling on a stretched string is represented by the equation $y=\frac{2}{(2x-6.2t{)}^2+20}$. Then,

• A. velocity of the wave is 3.1 m/s
• B. amplitude of the wave is 0.1 m
• C. frequency of the wave is 20 Hz
• D. wavelength of the wave is 1 m

Answer 1

The correct option is A velocity of the wave is 3.1 m/s

comparing this equation with the standard equation of transverse wave of same type , we get

the coefficient of the x is wave no $k=2$

the coefficient of the t is $\omega =6.2$

wave velocity is $v=\frac{\omega }{k}=\frac{6.2}{2}=3.1m/s$

so the answer is A.