What is quantum requirement?

What is a quantum?

What is quantum yield?

Non-cyclic photophosphorylation | | Quantum requirement & quantum yield

Give reason,why? Quantum requirement in photosynthesis is 8.

Cyclic and Non-cyclic Photophosphorylation|| Electron Transport System|| Chemiosmotic Theory for ATP Formation||Quantum Requirement and Quantum Yield

What is quantum number? Which quantum numbers are associated with shape and orientation of orbitals?

What is Quantum Numbers?

What is quantum mechanics ?give its primary information .