Physics MCQs with Answers

A. Balmer series

B. Pfund series

C. Bracket series

D. Lymann series

A. 10-10s

B. 10-8s

C. 10-6s

D. 10-9s

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. of unknown nature

B. high energy electrons

C. high energy photons

D. radio isotopes

A. three

B. four

C. five

D. six

A. band spectrum

B. line spectrum

C. continuous spectrum

D. absorption spectrum

A. 1st to 5th orbit

B. 2nd to 5th orbit

C. 3rd to 5th orbit

D. 4th to 5th orbit

A. photo electric effect

B. ionization

C. shadow photograph

D. any of above

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. continuous spectra for atoms

B. discrete spectra for atoms

C. either continuous nor discrete

D. no spectrum