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Difference among sound and light waves:
(i) For propagation of sound rays material phase is required but no material medium is needed for light waves.
(ii)Sound rays are longitudinal but light rays are transverse.
(iii) Wavelength of sound waves limits from 1.65 cm to 16.5 meter and for light wave it confines from 4000 Å to 2000 Å.
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kelvin; K (after Lord Kelvin, 1824-1907): The basic SI unit of thermodynamic temperature explained as 1/273.16 of the thermodynamic temperature of the triple point of water.
what is boyle''s third law?
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