Question

If I is the intensity of absorbed light and concentration of AB is C(M), then in the photochemical excitation of AB, AB + hn¾® AB*, the rate of excitation of AB is proportional to ?

• A. I C
• B. I²
• C. C
• D. I

Answer 1

Answer: (D)

I

Answer 2

$\frac{d\lbrack AB^{*}\rbrack}{dt}$ = k I

Therefore rate of excitation of AB is only proportional to intensity of the incident light.