What will be the effect of following statement:- Label5.visible = False
Answers
Answer:
All spectral lines belonging to Balmer series in hydrogen spectrum lie in visible region
if a light of frequency v falls on a metal surface having work function hv, photoelectric effect will take place only if v≤v0
The number of photoelectrons ejected from a metal surface in photoelectric effect depends upon the intensity of incident radiations.
The series limit wavelength of Balmer series for H-atom is 4R, where R is Rydberg's constant.
Answer :
A,B
Solution :
(A)Only first four spectral lines belonging to Balmer series in hydrogen spectrum lie in visible region.
(B) If a light of frequency v falls on a metal surface having work functional hv, photoelectric effect will take place only if v≥v0,since v0 is the minimum frequency required for photoelectric effect.