If $I$ is the intensity of absorbed light and $C$ is the concentration of $AB$ for the photochemical process $AB + h\nu \to AB^*$,the rate of formation of $AB^*$ is directly proportional to

Which of the following is true for a photochemical reaction?

According to the law of photochemical equivalence,the energy absorbed (in $ergs \ mol^{-1}$) is given as ($h = 6.62 \times 10^{-27} \ erg \ s$,$c = 3 \times 10^{10} \ cm \ s^{-1}$,$N_A = 6.02 \times 10^{23} \ mol^{-1}$):

The law of photochemical equivalence was given by

In a photochemical reaction,the ratio of the number of dissociated molecules to the number of quanta of absorbed energy is called:

For the reaction taking place in the presence of sunlight,the order of reaction is
$H_2 + Cl_2 \xrightarrow{\text{Sunlight}} 2HCl$