Spectrum is produced due to________________?

Related Mcqs:

2nd orbit is ___________ away from nucleus of H-atom as compared to 1st orbit is ?

A. 2-times B. 3-times C. 4-times D. 6 times...

The correct electronic configuration of Cu is ___________________?

A. [Ar]4s1 B. [Ar]4s2 C. [Ar]3d104s1 D. [Ar]3d94s2...

Positive rays are produced__________________?

A. By burning of gas B. By cooling of the gas C. By the bombardment of cathode rays on gas molecules D. From anode like cathode rays produced from cathode...

When 6d orbital is complete the entering electron goes into_________________?

A. 7f B. 7s C. 7p D. 7d...

Neutrons moving with an energy of 1.2 MeV are called_______________?

A. Fast neutrons B. Slow neutrons C. Moderate neutrons D. All are possible...