Question

Fundamental period of $f\left(x\right)=|\sin 2x|$ is

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

Answer 1

The correct option is B $\frac{\pi }{2}$



From the above graph clearly, fundamental period of $|\sin x|$ is $\frac{2\pi }{2}=\pi$

Now, fundamental period of $|\sin 2x|=\frac{\text{period of}|\sin x|}{2}=\frac{\pi }{2}$