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The threshold frequency of the metal of the cathode in a photoelectric cell is 1×10^15Hz. When a certain beam of light is incident on the cathode, it is found that a stopping potential 4.144 V is required to reduce the current to zero. The frequency of the incident radiation is
29
Nov
The threshold frequency of the metal of the cathode in a photoelectric cell is 1×10^15Hz. When a certain beam of light is incident on the cathode, it is found that a stopping potential 4.144 V is required to reduce the current to zero. The frequency of the incident radiation is it is found that a [...]
Following Hund’s rule which element contains six unpaired electron (a) Fe (b) Co (c) Ni (d) Cr
29
Nov
Following Hund’s rule which element contains six unpaired electron (a) Fe (b) Co (c) Ni (d) Cr Following Hund's rule which element contains six unpaired electron (a) Fe (b) Co (c) Ni (d) Cr November 29, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Electrons enters the sub – shell for which (n + 1 ) value is minimum . This is enunciated as
29
Nov
Electrons enters the sub – shell for which (n + 1 ) value is minimum . This is enunciated as Electrons enters the sub - shell for which (n + 1 ) value is minimum . This is enunciated as November 29, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The explanation for the presence of three unpaired electrons in the nitrogen atom can be given by
29
Nov
The explanation for the presence of three unpaired electrons in the nitrogen atom can be given by The explanation for the presence of three unpaired electrons in the nitrogen atom can be given by November 29, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
In an experiment of photoelectric effect the stopping potential was measured to be V1 and V2 volts with incident light of wavelength λ and λ/2, respectively. The relation between V1 and V2 may be
29
Nov
In an experiment of photoelectric effect the stopping potential was measured to be V1 and V2 volts with incident light of wavelength λ and λ/2, respectively. The relation between V1 and V2 may be In an experiment of photoelectric effect the stopping potential was measured to be V1 and V2 volts with incident light of [...]
When a certain metal surface is illuminated with light of frequency v, the stopping potential for photoelectric current is V0. When the same surface is illuminated by light of frequency v/2, the stopping potential is V0/4. The threshold frequency for photoelectric emission is
29
Nov
When a certain metal surface is illuminated with light of frequency v, the stopping potential for photoelectric current is V0. When the same surface is illuminated by light of frequency v/2, the stopping potential is V0/4. The threshold frequency for photoelectric emission is the stopping potential for photoelectric current is V0. When the same surface [...]
For sodium atom the number of electrons with m = 0 will be (a) 2 (b) 7 (c) 9 (d) 8
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Nov
For sodium atom the number of electrons with m = 0 will be (a) 2 (b) 7 (c) 9 (d) 8 For sodium atom the number of electrons with m = 0 will be (a) 2 (b) 7 (c) 9 (d) 8 November 29, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
One milliwatt of light of wavelength 4560 A is incident on a cesium surface of work function 1.9 ev. Given that quantum efficiency of photoelectric emission is 0.5 %. Planck’s constant h = 6.62 × 10^-34 J-s and velocity of light c = 3 × 10^8 ms^-1.
29
Nov
One milliwatt of light of wavelength 4560 A is incident on a cesium surface of work function 1.9 ev. Given that quantum efficiency of photoelectric emission is 0.5 %. Planck’s constant h = 6.62 × 10^-34 J-s and velocity of light c = 3 × 10^8 ms^-1. Ultraviolet beam of wavelength 280 nm is incident [...]
In a photoelectric experiment, the graph of frequency υ of incident light (in Hz) and stopping potential V (in V) is as shown in the figure. From figure, the value of the Planck’s constant is (e is the elementary charge)
29
Nov
In a photoelectric experiment, the graph of frequency υ of incident light (in Hz) and stopping potential V (in V) is as shown in the figure. From figure, the value of the Planck’s constant is (e is the elementary charge) In a photoelectric experiment the graph of frequency υ of incident light (in Hz) and [...]
A metallic surface is irradiated by a monochromatic light of frequency υ1 and stopping potential is found to be V1 If the light of frequency υ2 irradiates the surface, the stopping potential will be
29
Nov
A metallic surface is irradiated by a monochromatic light of frequency υ1 and stopping potential is found to be V1 If the light of frequency υ2 irradiates the surface, the stopping potential will be A metallic surface is irradiated by a monochromatic light of frequency υ1 and stopping potential is found to be V1 If [...]