Consider a 20 W bulb emitting light of wavelength `5000 oversetcircA` and shining on a metal surface kept at a distance 2m . Assume that the metal surface work function of 2eV and that each atom on the metal surface can be treated as a cirular disc of radius 1.5 A.
How many photons would atomic disc receive within time duration calculated in (iii) above?

Consider a 20 W bulb emitting light of wavelength 5000 oversetcircA and shining on a metal surface kept at a distance 2m . Assume that the metal surface work function of 2eV and that each atom on the metal surface can be treated as a cirular disc of radius 1.5 A. will there be photoelectric emission?

Consider a 20 W bulb emitting light of wavelength 5000 oversetcircA and shining on a metal surface kept at a distance 2m . Assume that the metal surface work function of 2eV and that each atom on the metal surface can be treated as a cirular disc of radius 1.5 A. How much time would be required by the atomic disc to receive enrgy equal to work function.

Consider a 20 W bulb emitting light of wavelength 5000 oversetcircA and shining on a metal surface kept at a distance 2m . Assume that the metal surface work function of 2eV and that each atom on the metal surface can be treated as a cirular disc of radius 1.5 A. Can you explain how photoelectric effect was observed instantaneously?

Consider a 20 W bulb emitting light of wavelength 5000 oversetcircA and shining on a metal surface kept at a distance 2m . Assume that the metal surface work function of 2eV and that each atom on the metal surface can be treated as a cirular disc of radius 1.5 A. Estimate no. of photons emitted by the bulb per second.[Assume no other losses]

A photon of wavelength 4 xx 10 ^(-7) m strickes on metal surface, the work function of the metal being 2.13 eV. Calculate energy of the photon (eV)

A photon of wavelength 4 xx 10 ^(-7) m strickes on metal surface, the work function of the metal being 2.13 eV. Calculate the kinetic energy of the emission

A photon of wavelength 4 xx 10 ^(-7) m strickes on metal surface, the work function of the metal being 2.13 eV. Calculate the velocity of the photoelectron (1 eV = 1. 6020 xx 10 ^(-19) J)

In a photoelectric effect set up, a point source of light of power 3.2 xx10^(-3) W emits monoenergetic photons of energy 5eV.The source is located at a distance of a stationary metallic sphere of work function 3eV and radius 8xx10^(-3)m .The efficiency of photoelectron emission is one for every 10^(6) incident photons.Assume that the sphere is isolated and initially neutral and the photoelectrons are initially swept away after emission. Calculate the number of photoelectrons emitted per second.

In a photoelectric effect set up, a point source of light of power 3.2 xx10^(-3) W emits monoenergetic photons of energy 5eV.The source is located at a distance of a stationary metallic sphere of work function 3eV and radius 8xx10^(-3)m .The efficiency of photoelectron emission is one for every 10^(6) incident photons.Assume that the sphere is isolated and initially neutral and the photoelectrons are initially swept away after emission. Find the ratio of the wavelength of incident light to the de Broglie wavelength of the fastest phtotelectrons emitted.

In a sample of excited hydrogen atoms electrons make transition from n=2 to n=1. Emitted quanta strike on a metal of work function 4.2eV. Calculate the wavelength in A associated with ejected electron having maximum kinetic energy