Golden rice is a transgenic crop of the future with the following improved trait:

Which of the following compound$(s)$ has '$Z$' configuration?

The number of points in $(-\infty, \infty)$ for which $x^2 - x \sin x - \cos x = 0$ is

The difference between the fundamental frequencies of an open pipe and a closed pipe of the same length is $100 \ Hz$. The difference between the frequencies of the second harmonic of the open pipe and the third harmonic of the closed pipe is: (in $Hz$)

Two bodies have their moments of inertia $I$ and $2I$ respectively about their axes of rotation. If their kinetic energies of rotation are equal,their angular momenta will be in the ratio:

If $|x| < \frac{1}{2}$,then the coefficient of $x^r$ in the expansion of $\frac{1+2x}{(1-2x)^2}$ is