In a photoelectric effect experiment the threshold wavelength of light is 380nm.If the wavelength of incident light is 260nm, the maximum kinetic energy of emitted electrons will be: Given E (in eV)= |
|||
(a) |
4.5eV |
(b) |
15.1eV |
(c) |
3.0eV |
(d) |
1.5eV |
In a photoelectric effect experiment the threshold wavelength of light is 380nm.If the wavelength of incident light is 260nm, the maximum kinetic energy of emitted electrons will be: Given E (in eV)= |
|||
(a) |
4.5eV |
(b) |
15.1eV |
(c) |
3.0eV |
(d) |
1.5eV |
Wavelength of incident waves
Cut off (threshold)wavelength =380nm
Then
K =
=1237
= = 1.5eV