Energy and Frequency. Planck showed how the energy of a quantum of light is related is related to its frequency. He defined a constant, known as Planckâs constant, which, when multiplied by the frequency of a light quantum, gives its energy.
curiosity noun (INTEREST). B2 [U] an âeager âwish to âknow or âlearn about something: to âarouse/âexcite/âsatisfy someone's curiosity I'm âburning with curiosity-you must âtell me who âwon! She âdecided to âcall her ex-boyfriend out of curiosity.
uk â /ËprÊÉ.ri.Ént/ us â /ËprÊr.i.Ént/ formal disapproving. âº too interested in the details of another person's sexual behaviour: He denied that the article had been in any way prurient. Thesaurus: synonyms and related words. Curiosity. curiosity. curiosity killed the cat idiom. curious. inquiring.