$Assertion :$ A tube light emits white light.
$Reason :$ Emission of light in a tube takes place at a very high temperature.
AIIMS 2003, Easy
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In tube light, the gas contains vapour of metals. In metallic atoms, electronic transition occurs due to which light of a particular wavelength is emitted. So
emission of white light is due to electronic transition and not due to vibration of atoms as in hot substances. So, Assertion is correct but Reason is incorrect.
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