Which one of the following pesticides is banned now-a-days?

Two simple harmonic motions are represented by $y_{1} = 5[\sin 2 \pi t + \sqrt{3} \cos 2 \pi t]$ and $y_{2} = 5 \sin (2 \pi t + \frac{\pi}{4})$. The ratio of their amplitudes is

Which one of the following has maximum genetic diversity in India?

The major product in the following reaction is:

$A$ particle of mass $m$ moves in the $XY$ plane with a velocity $V$ along the straight line $AB$. If the angular momentum of the particle with respect to origin $O$ is $L_A$ when it is at $A$ and $L_B$ when it is at $B$,then

The set $\{x \in R: \cos 2x + 2 \cos^2 x = 2\}$ is equal to