The spectrum obtained from a sodium vapour lamp is an example of

Line spectrum can be obtained from

The wavelength of sodium D_2 line obtained from a sodium vapour lamp is 5890Å . If the wavelength of sodium D_(2) line emitted by a star is measured as 5895 Å , then this implies that

The spectrum obtained from incandescent solids is

Solar spectrum is an example of

Line spectrum is obtained from the substances in

The luminous flux of a 1 W sodium vapour lamp is more than that of a 10 kW source of ultraviolet radiation. Comment.

The luminous flux of a 1 W sodium vapour lamp is more than that of a 10 kW source of ultraviolet radiation. Comment.

The luminous flux of a 1 W sodium vapour lamp is more than that of a 10 kW source of ultraviolet radiation. Comment.