Atomic Spectra MCQs

A. 18.336

B. 1836

C. 18360

D. 183.6

A. 1st to 5th orbit

B. 2nd to 5th orbit

C. 3rd to 5th orbit

D. 4th to 5th orbit

A. Balmer series

B. Pfund series

C. Bracket series

D. Lymann series

A. Photo electric effect

B. Ionization

C. Shadow photograph

D. Any of above

A. 10-10s

B. 10-8s

C. 10-6s

D. 10-9s

A. Radiate electromagnetic energy with a continuous distribution of wavelength

B. Absorb particular wavelengths when white light is incident on them

C. Radiate electromagnetic energy of discrete characteristic wavelength

D. Emit either invisible or visible light

A. Its energy levels are too close to each other

B. Its energy levels are too far apart

C. It is too small in size

D. It has a single electron

A. Continuous spectra for atoms

B. Discrete spectra for atoms

C. Either continuous nor discrete

D. No spectrum

A. Of unknown nature

B. High energy electrons

C. High energy photons

D. Radio isotopes

A. An atom has limited number of ionization potentials but a large number of excitation potentials

B. There are as many excitation potentials as there are excited states

C. The difference between the energy of the ground sate and any one of the excited states is the measure of excitation energy

D. All of above