HORTICULTURE

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: -“Quantum Efficiency or Quantum Yield () is defined as the number of molecules reacted per quantum of the absorbed light.” The Quantum Yield of a photochemical reaction can be as high as 106 or as low as 10-2.

Detailed explanation-3: -The quantum efficiency is, by definition, different from the quantum yield. The quantum yield is the probability that a photon is emitted after one photon has been absorbed [30]. The quantum efficiency is the probability that a photon is emitted after the system has been excited to its emitting state.

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.