When the electromagnetic radiations of frequencies 4×10^15 Hz and 6×10^15 Hz fall on the same metal ,in different experiments ,the ratio of maximum kinetic energy of electrons liberated is 1:3.The threshold frequency for the metal is.?

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When the electromagnetic radiations of frequencies 4×10^15 Hz and 6×10...

I think 3.51×10^-14

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According to wave theory of light, the light of any frequency can emit electrons from metallic surface provided the intensity of light be sufficient to provide necessary energy for emission of electrons, but according to experimental observations, the light of frequency less than threshold frequency can not emit electrons; whatever be the intensity of incident light. Einstein also proposed that electromagnetic radiation is quantised.If photoelectrons are ejected from a surface when light of wavelength λ1 = 550 nm is incident on it. The stopping potential for such electrons is Vs =0.19 . Suppose the radiation of wavelength λ2 = 190 nm is incident on the surface.Q. Calculate the work function of the surface.

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According to wave theory of light, the light of any frequency can emit electrons from metallic surface provided the intensity of light be sufficient to provide necessary energy for emission of electrons, but according to experimental observations, the light of frequency less than threshold frequency can not emit electrons; whatever be the intensity of incident light. Einstein also proposed that electromagnetic radiation is quantised.If photoelectrons are ejected from a surface when light of wavelength λ1 = 550 nm is incident on it. The stopping potential for such electrons is Vs =0.19 . Suppose the radiation of wavelength λ2 = 190 nm is incident on the surface.Q. Calculate the stopping potential Vs2 of the surface.

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According to wave theory of light, the light of any frequency can emit electrons from metallic surface provided the intensity of light be sufficient to provide necessary energy for emission of electrons, but according to experimental observations, the light of frequency less than threshold frequency can not emit electrons; whatever be the intensity of incident light. Einstein also proposed that electromagnetic radiation is quantised.If photoelectrons are ejected from a surface when light of wavelength λ1 = 550 nm is incident on it. The stopping potential for such electrons is Vs =0.19 . Suppose the radiation of wavelength λ2 = 190 nm is incident on the surface.Q. Calculate the threshold frequency for the surface.

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In a photoelectric experiment, the potential difference V that must be maintained between the illuminated surface and the collector so as just to prevent any electron from reaching the collector is determined for different frequencies f of the incident illumination. The graph obtained is shown. The maximum kinetic energy of the electrons emitted at frequency f1is

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According to wave theory of light, the light of any frequency can emit electrons from metallic surface provided the intensity of light be sufficient to provide necessary energy for emission of electrons, but according to experimental observations, the light of frequency less than threshold frequency can not emit electrons; whatever be the intensity of incident light. Einstein also proposed that electromagnetic radiation is quantised.If photoelectrons are ejected from a surface when light of wavelength λ1 = 550 nm is incident on it. The stopping potential for such electrons is Vs =0.19 . Suppose the radiation of wavelength λ2 = 190 nm is incident on the surface.Q. Photoelectric effect supports quantum nature of light because(i) there is a minimum frequency of light below which no photoelectrons are emitted.(ii) the maximum K.E. of photoelectric depends only on the frequency of light and not on its intensity.(iii) even when the metal surface is faintly illuminated, the photo electrons leave the surface immediately.(iv) electric charge of the photoelectrons is quantized.

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When the electromagnetic radiations of frequencies 4×10^15 Hz and 6×10^15 Hz fall on the same metal ,in different experiments ,the ratio of maximum kinetic energy of electrons liberated is 1:3.The threshold frequency for the metal is.? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about When the electromagnetic radiations of frequencies 4×10^15 Hz and 6×10^15 Hz fall on the same metal ,in different experiments ,the ratio of maximum kinetic energy of electrons liberated is 1:3.The threshold frequency for the metal is.? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When the electromagnetic radiations of frequencies 4×10^15 Hz and 6×10^15 Hz fall on the same metal ,in different experiments ,the ratio of maximum kinetic energy of electrons liberated is 1:3.The threshold frequency for the metal is.?.

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