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(i) It has of continuously varying wavelengths in a exact wavelength range.
(ii) It is given by solids, liquids and highly compressed gases heated to high temperature.
(iii) E.g. Light from the sun, candle flame, filament of incandescent bulb etc.
two balls connected by massless string wherein the first ball A is confined to a plane surface with frection and the second ball B, due to the string’s passage through a small hol
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