Question

what is the meaning of fret.
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Answer 1

to be worried and unhappy about something

किसी विषय में चिंतित और दुखी होना

noun

one of the bars across the long thin part of a guitar, etc. that show you where to put your fingers to produce a particular sound

गिटार आदि के लंबे संकरे भाग के आर-पार लगी छड़ जो विशेष ध्वनि को उत्‍पन्‍न करने के लिए अंगुली रखने के लिए प्रयुक्त होती है

Answer 2

Answer:

FRET is the radiationless transmission of energy from a donor molecule to an acceptor molecule. The donor molecule is the dye or chromophore that initially absorbs the energy and the acceptor is the chromophore to which the energy is subsequently transferred.