The number of waves made by an electron moving in an orbit having a maximum magnetic quantum number $(m_l) = +3$ is:

In which of the following properties do the two enantiomers of lactic acid differ from each other?

Which of the following uses $RNA$ as a template strand for $DNA$ synthesis?

$A$ uniform cylinder of length $L$ and mass $M$ having cross-sectional area $A$ is suspended,with its length vertical,from a fixed point by a massless spring such that it is half submerged in a liquid of density $\sigma$ at equilibrium position. The extension $x_0$ of the spring when it is in equilibrium is:

For the given figure,if the block remains in equilibrium,find the frictional force between the block and the wall in $N$.

Which of the following is $NOT$ a part of the intratesticular genital duct system?