Photoelectric EffectHard
Question
A photon of energy 10.2 eV corresponds to light of wavelength λ0. Due to an electron transition from n = 2 to n = 1 in a hydrogen atom, light of wavelength λ is emitted. If we take into account the recoil of the atom when the photon is emitted,
Options
A.λ = λ0
B.λ < λ0
C.λ > λ0
D.the data is not sufficient to reach a conclusion
Solution
Due to recoile of the H-atom, energy of photon must be less then 10.2eV, so its wavelength will be less than λ0.
Create a free account to view solution
View Solution FreeMore Photoelectric Effect Questions
For producing the X-rays, what is the value of voltage (nearly), which is applied on the tube:...A proton moves on a circular path of radius 6.6 × 10-3 m in a perpendicular magnetic field of 0.625 tesla. The De b...A spherical drop of water has 1mm radius. If the surface tension of water is 70 × 10-3N/m then the difference of pr...Two isotopes P and Q of atomic weight 10 and 20, respectively are mixed in equal amount by weight. After 20 days their w...A 200 W sodium street lamp emits yellow light of wavelength 0.6 μm. Assuming it to be 25% efficientin converting el...