Dual Nature of ...

Photoelectric effect is based on ________ nature of radiation.

The speed of an electron having a wavelength of 10^-10 m is

Consider if a source of 20 W emitting light with wavelength 6000 A, then what will be the number of electrons emitted per second from the surface due to the photoelectric effect?

(take h = 6.6 × 10–34 Js, efficiency of photoelectric effect = 4%)

A microwave radiation has a frequency of 14 gigahertz. Calculate the energy of the photon corresponding to this radiation. (h = 6.626 x 10^-34 J s and 1 gigahertz = 10⁹ Hz.) 

The energy of the photon of the monochromatic light is 1.326 × 10^-19 J. Find the frequency of the light.

Find the de-Broglie wavelength of an electron with kinetic energy of 120 eV.

Choose the INCORRECT statement among the following for de-Broglie wave?

Two radiations of photons energies 1 eV and 2.5 eV, successively illuminate a photosensitive metallic surface of work function 0.5 eV. The ratio of the maximum speeds of the emitted electrons is:

According to Einstein's photoelectric equation, the graph of K.E. of the photoelectron emitted from the metal versus the frequency of the incident radiation gives a straight line graph, whose slope ________

Which of the following statements are true regarding Davisson - Germer experimental setup?

(i) Electrostatic particle accelerators are used to accelerates the electrons

(ii) Electron beam is fired from the electron gun to nickel crystal.

(iii) Detector used to capture the electrons.