boon 1. n. 1. A benefit bestowed, especially one bestowed in response to a request. 2. A timely blessing or benefit: A brisk breeze is a boon to sailors. [Middle English.
Quantum leaps are the sole cause of the emission of electromagnetic radiation, including light, which occurs in the form of quantized units called photons. Ironically, when laymen use the term colloquially, they use it to describe large jumps in progress, when in reality a quantum leap is a very small change of state.
Answer is (c) i.e. absorbs a quantum of energy. The word quantum means a fixed amount of energy. Electron always absorbs a fixed quantity of energy so that it can jump from lower energy level to higher energy level. At the same time electron will lose that same quantity of energy in form of radiation to come back to the lower energy level. gpina_9 Â· 8 years ago.