Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
The minimum wavelength of radiation coming from the tungsten target (collector ) is
13
Sep
The minimum wavelength of radiation coming from the tungsten target (collector ) is The minimum wavelength of radiation coming from the tungsten target (collector ) is September 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A photosensitive metallic surfaces has work function hv0 . If photon of 2 hv0 fall on the surface ,the electrons come out with a maxiumum velocity of 4×106m/s . If energy of photon is increased to 5 hv0 , the maximum velocity of photo electrons will be :
13
Sep
A photosensitive metallic surfaces has work function hv0 . If photon of 2 hv0 fall on the surface ,the electrons come out with a maxiumum velocity of 4×106m/s . If energy of photon is increased to 5 hv0 , the maximum velocity of photo electrons will be : A photosensitive metallic surfaces has work function [...]
When a metal surface is illuminated by light wavelengths 400 nm and 250 nm , the maximum velocities of the photoelectrons ejected are υ and 2v respectively . The work function of the metal is ( h = Planck’s constant, c = velocity of light in air)
13
Sep
When a metal surface is illuminated by light wavelengths 400 nm and 250 nm , the maximum velocities of the photoelectrons ejected are υ and 2v respectively . The work function of the metal is ( h = Planck’s constant, c = velocity of light in air) c = velocity of light in air) the [...]
The collecter of the photocell (in photoelectric experiment ) is made of tugsten while the emitter is Platinum having work function of 10eV .Monochromotic radiation of wavelength 124Å & power 100 watt is incident on emitter which emits photo electrons with a quantum efficiency of 1% .The accelerating voltage acros the photocell is of 10,000 volts (Use: hc=12400eVÅ ) The minimum wavelength of radiation coming from the tungsten target (collector) is
13
Sep
The collecter of the photocell (in photoelectric experiment ) is made of tugsten while the emitter is Platinum having work function of 10eV .Monochromotic radiation of wavelength 124Å & power 100 watt is incident on emitter which emits photo electrons with a quantum efficiency of 1% .The accelerating voltage acros the photocell is of 10,000 [...]
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2f is greater than threshold frequency of B ) ,
the ratio of the maximum kinetic energy of photoelectrons emitted is ( f is greater than threshold frequency of A ,
The work functions of metals A and B are in the ratio 1 : 2 . If light of frequencies f and 2f are incident on the surfaces of A and B respectively ,
The work functions of metals A and B are in the ratio 1 : 2 . If light of frequencies f and 2f are incident on the surfaces of A and B respectively , the ratio of the maximum kinetic energy of photoelectrons emitted is ( f is greater than threshold frequency of A, 2f is greater than threshold frequency of B )
13
Sep
The work functions of metals A and B are in the ratio 1 : 2 . If light of frequencies f and 2f are incident on the surfaces of A and B respectively , the ratio of the maximum kinetic energy of photoelectrons emitted is ( f is greater than threshold frequency of A, 2f [...]
Tags:
2f is greater than threshold frequency of B ) ,
the ratio of the maximum kinetic energy of photoelectrons emitted is ( f is greater than threshold frequency of A ,
The work functions of metals A and B are in the ratio 1 : 2 . If light of frequencies f and 2f are incident on the surfaces of A and B respectively ,
Light of wavelength λ strikes a photo – sensitive surface and electrons are ejected with kinetic energy is to be increased to 2E , the wavelength must be changed to λ’ where
13
Sep
Light of wavelength λ strikes a photo – sensitive surface and electrons are ejected with kinetic energy is to be increased to 2E , the wavelength must be changed to λ’ where Light of wavelength λ strikes a photo - sensitive surface and electrons are ejected with kinetic energy is to be increased to 2E [...]
From the figure describing photoelectric effect we may infer correctly that
13
Sep
From the figure describing photoelectric effect we may infer correctly that From the figure describing photoelectric effect we may infer correctly that September 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Five elements A,B,C,D and E have work functions 1.2eV, 2.4eV ,3.6eV, 4.8eV and 6eV respectively . If light of wavelength 4000Å is allowed to fall on these elements , then photo electrons are emitted by
13
Sep
Five elements A,B,C,D and E have work functions 1.2eV, 2.4eV ,3.6eV, 4.8eV and 6eV respectively . If light of wavelength 4000Å is allowed to fall on these elements , then photo electrons are emitted by 2.4eV 3.6eV 4.8eV and 6eV respectively . If light of wavelength 4000Å is allowed to fall on these elements B [...]
A photo cell is receiving light from a source placed at a distance 1 m. If the same source is to be placed at a distance of 2 m, then the ejected electron
13
Sep
A photo cell is receiving light from a source placed at a distance 1 m. If the same source is to be placed at a distance of 2 m, then the ejected electron A photo cell is receiving light from a source placed at a distance 1 m. If the same source is to be [...]
For a photoelectric cell the graph showing the variation of cut of voltage (Vo) with frequency (v) of incident light is best represented by
13
Sep
For a photoelectric cell the graph showing the variation of cut of voltage (Vo) with frequency (v) of incident light is best represented by For a photoelectric cell the graph showing the variation of cut of voltage (Vo) with frequency (v) of incident light is best represented by September 13, 2020 Category: Uncategorised (JEE Advanced [...]