Photoelectric EffectHard
Question
A spherical drop of water has 1mm radius. If the surface tension of water is 70 × 10-3N/m then the difference of pressures between inside and outside of the spherical drop is:
Options
A.140N/m2
B.140N/m
C.35Nm2
D.none of these
Solution
Excess pressure, ᐃp = 
= 140newton / m2
= 140newton / m2Create a free account to view solution
View Solution FreeMore Photoelectric Effect Questions
Consider a sample of a pure beta-active material...An electron and proton are accelerated through same potential, then λe/λp will be...Maximum kinetic energy (Ek) of a photoelectron varies with the frequency (n) of the incident radiation as :-...A lamp of 250 candela power is hanging at a distance of 6 m from a wall. The illuminance at a point on the wall at a min...Work function of silver is 5.75 × 10-18 Joule. Then threshold wave length is:-...