[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?

What is the wavelength region of visible spectrum ?

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

The dark lines in the solar spectrum are due to

Why many lines are observed in the hydrogen emission spectrum ?

Why many lines are observed in the hydrogen emission spectrum ?