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.
Adj. 1. curious-beyond or deviating from the usual or expected; a curious hybrid accent; her speech has a funny twang; they have some funny ideas about war; had an odd name; the peculiar aromatic odor of cloves; something definitely queer about this town; what a rum fellow; singular behavior.