question_answer

When light emitted by a white hot solid is passed through a sodium flame, the spectrum of the emergent light will show                   [MP PMT 1992]

A)            The \[{{D}_{1}}\] and \[{{D}_{2}}\] bright yellow lines of sodium

B)            Two dark lines in the yellow region

C)            All colours from violet to red

D)            No colours at all