The complete hydrolysis of $ICl , ClF _3$ and $BrF _5$, respectively, gives

The surface of the lake is at $2^{\circ}C$. Find the temperature of the bottom of the lake in $^{\circ}C$.

Which of the following is not used as a biopesticide?

If $\cos (A-B)=3/5$ and $\tan A \tan B=2$,then which one of the following is true?

$A$ disc and a ring of the same mass are rolling. If their kinetic energies are equal,then the ratio of their velocities will be

$A$ particle executes $SHM$ on a straight line path. The amplitude of oscillation is $2 \, cm$. When the displacement of the particle from the mean position is $1 \, cm$,the numerical value of the magnitude of acceleration is equal to the numerical value of the magnitude of velocity. The frequency of $SHM$ is (in $s^{-1}$):