`D_(3)` line observed in the yellow region of the sun's spectrum is due to

Line spectrum is due to

The nature of sun’s spectrum is

Continuous spectrum is not due to

(1) What is meant by line spectra of atom ? (2) How many lines are observed in the visible region of hydrogen spectrum?

D_3 line was observed along with D, and Din the solar spectrum. This denotes the presence of

When a beam of white light is passed through sodium vapours and then through a spectrometer, spectrum so obtained has two dark lines present in the yellow region. This spectrum is called :

Why many lines are observed in the hydrogen emission spectrum ?

Why many lines are observed in the hydrogen emission spectrum ?