1. The photochemical reaction which takes place by directly absorbing light
(A) Primary
(B) Secondary
(C) Tertiary
(D) Chain
2. Who gave the law of photochemical equivalence
(A) Grothus–Draper
(B) Faraday
(C) Stark–Einstein
(D) Henry
3. Photosynthesis is an example of
(A) Photophysical process
(B) Photochemical process
(C) Thermochemical process
(D) Photosensitization
4. Phosphorescence and fluorescence are examples of
(A) Photo reaction
(B) Dark reaction
(C) Photophysical reaction
(D) Photosynthetic reaction
5. The emission of light as a result of chemical reaction
(A) Fluorescence
(B) Phosphorescence
(C) Chemical luminescence
(D) Chemical reaction
6. Number of molecules reacted per quantum of light absorbed
(A) Electric field
(B) Yield per pass
(C) Quantum yield
(D) Yield percent
7. Photochemical reactions are
(A) Chain
(B) Fusion
(C) Fission
(D) None of these
8. UV and IR are
(A) Visible rays
(B) Invisible rays
(C) Both a & b
(D) None of these
9. In photochemical reaction increase in
(A) P.E
(B) K.E
(C) Internal energy
(D) All of these
10. Intensity of light is measured by
(A) Electrode
(B) Potentiometer
(C) Photoelectric cell
(D) All of these