Advertisements
Advertisements
Question
Einstein's photoelectric equation is:
a) `E_"max" = hlambda - varphi_0`
b) `E_"max"= (hc)/lambda varphi_0`
c) `E_"max" = hv + varphi_0`
d) `E_"max" = (hv)/lambda + varphi_0`
Solution
`E_"max"= (hc)/lambda varphi_0`
∵ `hv + phi_0 + E_"max"`
APPEARS IN
RELATED QUESTIONS
The photoelectric threshold wavelength of a metal is 230 nm. Determine the maximum kinetic energy in joule and in eV of the ejects electron for the metal surface when it is exposed to a radiation of wavelength 180 nm.
[Planck’s constant : h = 6.63 * 10-34 Js, Velocity of light : C = 3 * 108 m/s.]
According to the Einstein’s model, stopping potential Vo for a metal having work function ϕ0 is given by ______.
Which of the following graphs correctly represents the variation of maximum kinetic energy (Ek) of photoelectrons with the frequency (𝜈) of the incident radiation?
According to Einstein's photoelectric equation, the plot of the kinetic energy of the emitted photoelectrons from a metal Vs the frequency of the incident radiation gives as straight the whose slope:
Dimensions of ‘resistance’ are same as (where h is Planck's constant and e is charge):
If the energy of photon corresponding to a wavelength of 6000 A° is 3.32 × 10-19 J, the photon energy for a wavelength of 4000 A° will be
What will be wavelength of a photon of momentum 6.6 × 10–24 kgms–1?
The wavelength of matter is independent of
- Calculate the energy and momentum of a photon in a monochromatic beam of wavelength 331.5 nm.
- How fast should a hydrogen atom travel in order to have the same momentum as that of the photon in part (a)?
How does stopping potential in photoelectric emission vary if the intensity of the incident radiation increases?