Question

A travelling harmonic wave on a string is described by $y$ = 7.5 sin (0.005$x$ + 12$t$) in metre. Its time period in second is

• A. $\frac{Ï€}{12}$
• B. $\frac{Ï€}{6}$
• C. $\frac{Ï€}{3}$
• D. $\frac{Ï€}{2}$
• E. $Ï€$

Answer 1

Answer: (B)

Correct answer is (b) $\frac{Ï€}{6}$