Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
When a monochromatic point source of light is at a distance of 0.2 m from a photoelectric cell, the cut-off voltage and the saturation current are, respectively, 0.6 V and 18.0 mA. If
14
Oct
When a monochromatic point source of light is at a distance of 0.2 m from a photoelectric cell, the cut-off voltage and the saturation current are, respectively, 0.6 V and 18.0 mA. If 0.6 V and 18.0 mA. If respectively the cut-off voltage and the saturation current are When a monochromatic point source of light [...]
The threshold wavelength for photoelectric emission from a material is 5200 A. Photoelectrons will be emitted when this material is illuminated with monochromatic radiation from a
14
Oct
The threshold wavelength for photoelectric emission from a material is 5200 A. Photoelectrons will be emitted when this material is illuminated with monochromatic radiation from a The threshold wavelength for photoelectric emission from a material is 5200 A. Photoelectrons will be emitted when this material is illuminated with monochromatic radiation from a October 14, 2020 [...]
The figure shows the results of an experiment involving photoelectric effect. The graphs A, B , C and D relate to a light beam having different wavelengths. Select the correct alternative
14
Oct
The figure shows the results of an experiment involving photoelectric effect. The graphs A, B , C and D relate to a light beam having different wavelengths. Select the correct alternative B C and D relate to a light beam having different wavelengths. Select the correct alternative The figure shows the results of an experiment [...]
Photons of wavelength 248 nm falls on a metal surface whose work function is 2.2 eV. Assume thru each photoelectron inside the metal lattice may come out of the surface or collide
14
Oct
Photons of wavelength 248 nm falls on a metal surface whose work function is 2.2 eV. Assume thru each photoelectron inside the metal lattice may come out of the surface or collide Photons of wavelength 248 nm falls on a metal surface whose work function is 2.2 eV. Assume thru each photoelectron inside the metal [...]
Threshold wavelength of certain metal is lemda 0. A radiation of wavelength lemda < lemda 0 is incident on the plate. Then, choose the correct statement from the following.
14
Oct
Threshold wavelength of certain metal is lemda 0. A radiation of wavelength lemda < lemda 0 is incident on the plate. Then, choose the correct statement from the following. choose the correct statement from the following. Threshold wavelength of certain metal is lemda 0. A radiation of wavelength lemda < lemda 0 is incident on [...]
When photons of energy hc/lemda fall on a metal surface, photoelectrons are ejected form it. If the work function of the surface is hv0, then
14
Oct
When photons of energy hc/lemda fall on a metal surface, photoelectrons are ejected form it. If the work function of the surface is hv0, then photoelectrons are ejected form it. If the work function of the surface is hv0 then When photons of energy hc/lemda fall on a metal surface October 14, 2020 Category: Uncategorised [...]
In a photoelectric experiment, the wavelength of the incident light is decreased from 6000 A to 4000 A. While the intensity of radiations remains the same,
14
Oct
In a photoelectric experiment, the wavelength of the incident light is decreased from 6000 A to 4000 A. While the intensity of radiations remains the same, In a photoelectric experiment the wavelength of the incident light is decreased from 6000 A to 4000 A. While the intensity of radiations remains the same October 14, 2020 [...]
Photelectric effect supports the quantum nature of light because (1) there is minimum frequency of light below which no photoelectrons are emitted (2) the maximum KE of photoelectrons
14
Oct
Photelectric effect supports the quantum nature of light because (1) there is minimum frequency of light below which no photoelectrons are emitted (2) the maximum KE of photoelectrons Photelectric effect supports the quantum nature of light because (1) there is minimum frequency of light below which no photoelectrons are emitted (2) the maximum KE of [...]
The light sensitive compound on most photographic films is silver bromide AgBr. A film is exposed when the light energy absorbed dissociates their molecule into its atoms. The energy
14
Oct
The light sensitive compound on most photographic films is silver bromide AgBr. A film is exposed when the light energy absorbed dissociates their molecule into its atoms. The energy The light sensitive compound on most photographic films is silver bromide AgBr. A film is exposed when the light energy absorbed dissociates their molecule into its [...]
The human eye is most sensitive to green light of wavelength 505 nm. Experiments have found that when people are kept in a dark room until their eyes adapt to the darkness, a single photon
14
Oct
The human eye is most sensitive to green light of wavelength 505 nm. Experiments have found that when people are kept in a dark room until their eyes adapt to the darkness, a single photon a single photon The human eye is most sensitive to green light of wavelength 505 nm. Experiments have found that [...]