The standard e.m.f. of a cell,involving one electron change is found to be $0.591 \ V$ at $25 \ ^oC$. The equilibrium constant of the reaction is ($F = 96,500 \ C \ mol^{-1}$; $R = 8.314 \ JK^{-1} \ mol^{-1}$)

Which of the following is the initiation codon?

The Bhopal gas tragedy of $1984$ was caused by:

In a $dc$ motor,induced $e.m.f.$ will be maximum

$A$ student measures the distance traversed in free fall of a body,initially at rest in a given time. He uses this data to estimate $g$,the acceleration due to gravity. If the maximum percentage errors in measurement of the distance and the time are $e_1$ and $e_2$ respectively,the percentage error in the estimation of $g$ is

In the visible region, the dispersive powers and the mean angular deviations for crown and flint glass prisms are $\omega, \omega^{\prime}$ and $d, d^{\prime}$ respectively. The condition for obtaining dispersion without deviation, when the two prisms are combined, is: