A metal is irradiated with light of wavelength 660 nm. Given that the work function of the metal is 1.0eV, the de Broglie wavelength of the ejected electron is close to-
Light of wavelength 3000Å is incident on a metal surface whose work function is 1 eV. The maximum velocity of emitted photoelectron will be
When the light of wavelength 400 nm is incident on a metal surface of work function 2.3 eV , photoelectrons are emitted. A fasted photoelectron combines with a He^(2+) ion to form He^(+) ion in its third excited state and a photon is emitted in this process. Then the energy of the photon emitted during combination is
Ligth of wavelength 4000 Å is incident on a metal plate whose work function is 2 eV . What is maximum kinetic enegy of emitted photoelectron ?
A glass tube has Be^(+++) ions excited to their second excited state. The radiation coming out of this tube is incident on a metal plate having work function f = 5 eV . Find the minimum de-Broglie wavelength of emitted photoelectrons.
The radiation of wavelength 332 nm is incident on a metal of work function 1.70 eV. The value of the stopping potential will be
Light of 5,500 Å is incident on a metal of work function 2 eV . Calculate the (i) threshold wavelength (ii) maximum velocity of electrons emitted.
Ultraviolet beam of wavelength 280 nm is incident on lithium surface of work function 2.5 eV. The maximum velocity of electron emitted from metal surface is
Light of wavelength 4000 Å is incident on a metal surface. The maximum kinetic energy of emitted photoelectron is 2 eV. What is the work function of the metal surface ?
Electrons are emitted from the cathode of a photocell of negligible work function, when photons of wavelength lamda are incident on it. Derive the expression for the de Broglie wavelength of the electrons emitted in terms of the wavelength of the incident light
AAKASH INSTITUTE-ALTERNATING CURRENT -Assignment (Section-J) (Aakash Chailengers Questions)
