OBJECTIVE FORESTRY

Detailed explanation-1: -Explanation: Quantum efficiency=Number of molecules reacting in a given time/Number of quanta of light absorbed in the same time. Hence, Quantum efficiency is given by nNhc/q. Explanation: If a reaction obeys Einstein law, one molecule is decomposed per photon.

Detailed explanation-2: -The quantity Quantum Yield, , is defined by the sum of all emitted photons, divided by the sum of all absorbed photons. The number of absorbed photons is given by the difference of the two scattered curves.

Detailed explanation-3: -the quantum yield () is a measure of the efficiency of photon emission as defined by the ratio of the number of photons emitted to the number of photons absorbed.

Detailed explanation-4: -The ratio of photons absorbed versus emitted as fluorescent light is referred to as the fluorescence quantum yield or quantum efficiency and is associated with the fluorescence intensity of fluorescent substances. Two methods are used to determine this ratio, either a relative or absolute method.