Urdu Meanings, Pronounciation and Synonyms:
Rayleigh Disk
(Pronunciation -تلفظ سنیۓ )
US: 
Slow
Normal
Noun: Rayleigh Disk
| 1. Rayleigh Disk | |
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An acoustic radiometer consisting of a light disk suspended from a quartz thread; when exposed to a progressive sound wave its torque can measure velocity
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