The figure shows different graphs between stopping potential (V0) and frequency (v) for photosensitive surface of cesium
Sahay Sir > Question Answers > The figure shows different graphs between stopping potential (V0) and frequency (v) for photosensitive surface of cesium
A physicist wishes to eject electrons by shining light on a metal surface. The light source emits light of wavelength of 450nm . The table litsts the only available and their work fucntions. MetalBariumLithiumtantalumTungsten−−−−W0(eV)2.52.34.24.5 which metal(s) can be used to produce electrons by photoelectric effect from given source of light?
13
Sep
A physicist wishes to eject electrons by shining light on a metal surface. The light source emits light of wavelength of 450nm . The table litsts the only available and their work fucntions. MetalBariumLithiumtantalumTungsten−−−−W0(eV)2.52.34.24.5 which metal(s) can be used to produce electrons by photoelectric effect from given source of light? potassium sodium and lithium. The [...]
The work function of a certain metal is hC / λ0 . When a monochromatic light of wavelength λ<λ0 is incident such that the plate gains a total power P . If the efficiency of photoelectric emission is η% and all the emitted photoelectrons are captured by a hollow conducting sphere of radius R already charged to potential V , then neglecting any interaction of potential of the sphere at time t is:
13
Sep
The work function of a certain metal is hC / λ0 . When a monochromatic light of wavelength λ<λ0 is incident such that the plate gains a total power P . If the efficiency of photoelectric emission is η% and all the emitted photoelectrons are captured by a hollow conducting sphere of radius R already [...]
Light from a hydrogen tube is incident on the cathode of a photoelectric cell the work function of the cathode surface is 4.2eV . In order to reduce the photo – current to zero the voltage of the anode relative to the cathode must be made
13
Sep
Light from a hydrogen tube is incident on the cathode of a photoelectric cell the work function of the cathode surface is 4.2eV . In order to reduce the photo – current to zero the voltage of the anode relative to the cathode must be made potassium sodium and lithium. The plots are parallel. Correct [...]
Two metallic plate A and B , each of area 5×10−4m2 , are placed parallel to each at a separation of 1cm plate B carries a positive charge of 33.7×10−12C A monocharonatic beam of light , with photoes of energy 5eV each , starts falling on plate A at t=0 so that 1016 photons fall on it per square meter per second. Assume that one photoelectron is emitted for every 106 incident photons fall on it per square meter per second. Also assume that all the emitted photoelectrons are collected by plate B and the work function of plate A remain constant at the value 2eV Determine (a) the number of photoelectrons emitted up to i=10s,
13
Sep
Two metallic plate A and B , each of area 5×10−4m2 , are placed parallel to each at a separation of 1cm plate B carries a positive charge of 33.7×10−12C A monocharonatic beam of light , with photoes of energy 5eV each , starts falling on plate A at t=0 so that 1016 photons fall [...]
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are placed parallel to each at a separation of 1cm plate B carries a positive charge of 33.7×10−12C A monocharonatic beam of light ,
each of area 5×10−4m2 ,
potassium ,
sodium and lithium. The plots are parallel. Correct ranking of the targets according to their work function greatest first will be ,
The figure shows different graphs between stopping potential (V0) and frequency (v) for photosensitive surface of cesium ,
Two metallic plate A and B ,
with photoes of energy 5eV each ,
Photoelectric emission is observed from a surface for frequencies v1 and v2 of the incident radiation (v1>v2) . If the maximum kinetic energies of the photoelectrons in two cases are in ratio 1 : K then the threshold frequency v0 is given by.
13
Sep
Photoelectric emission is observed from a surface for frequencies v1 and v2 of the incident radiation (v1>v2) . If the maximum kinetic energies of the photoelectrons in two cases are in ratio 1 : K then the threshold frequency v0 is given by. potassium sodium and lithium. The plots are parallel. Correct ranking of the [...]
In a photocell bichromatic light of wavelength `2475 Å` and `6000 Å` are incident on cathode whose work function is `4.8 eV`. If a uniform magnetic field of `3 xx 10^(-5) Tesla` exists parallel to the plate , the radius of the path describe by the photo electron will be (mass of electron ` = 9 x 10^(-31) kg`)
13
Sep
In a photocell bichromatic light of wavelength `2475 Å` and `6000 Å` are incident on cathode whose work function is `4.8 eV`. If a uniform magnetic field of `3 xx 10^(-5) Tesla` exists parallel to the plate , the radius of the path describe by the photo electron will be (mass of electron ` = [...]
Light of wave length 2475 A is incident on barium. photo electrons emitted describe a circle of radius 100 cm by a magnetic field of flux density 1/ root7 x 10^-5 Tesla. Work function of the barium is (Given e/m = 1.7 x 10^11 )
13
Sep
Light of wave length 2475 A is incident on barium. photo electrons emitted describe a circle of radius 100 cm by a magnetic field of flux density 1/ root7 x 10^-5 Tesla. Work function of the barium is (Given e/m = 1.7 x 10^11 ) potassium sodium and lithium. The plots are parallel. Correct ranking [...]
The figure shows different graphs between stopping potential (V0) and frequency (v) for photosensitive surface of cesium , potassium , sodium and lithium. The plots are parallel. Correct ranking of the targets according to their work function greatest first will be
13
Sep
The figure shows different graphs between stopping potential (V0) and frequency (v) for photosensitive surface of cesium , potassium , sodium and lithium. The plots are parallel. Correct ranking of the targets according to their work function greatest first will be potassium sodium and lithium. The plots are parallel. Correct ranking of the targets according [...]