Question

The fundamental period of $f\left(x\right)=\sin 2x$ is

• A. $\frac{\pi }{2}$
• B. $\pi$
• C. $2\pi$
• D. $4\pi$

Answer 1

The correct option is B $\pi$

Let us draw the graph of $f\left(x\right)=\sin 2x$


We can observe from the graph that the graph is repeated after every interval of length $\pi .$
$\therefore$ Fundamental period $=\pi$