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In the Davisson and Germer experiment, thevelocity of electrons emitted from the electrongun can be increased by [2011]
  • a)
    increasing the potential difference betweenthe anode and filament
  • b)
    increasing the filament current
  • c)
    decreasing the filament current
  • d)
    decreasing the potential difference betweenthe anode and filament
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
In the Davisson and Germer experiment, thevelocity of electrons emitte...
In the Davisson and Germer experiment, the
velocity of electrons emitted from the
electron gun can be increased by
increasing the potential difference between
the anode and filament.
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Read the following text and answer the following questions on the basis of the same: In one of his experiments on interference, August Jean Fresnel used a biprism to induce interference between two beams. He split a diverging beam of light into two parts by using the biprism to refract them. This resulted in two split beams which acted as if they were from two coherent sources and which therefore interfered with each other. A Fresnel Biprism is a thin double prism placed base to base and have very small refracting angle ( 0.5°). This is equivalent to a single prism with one of its angle nearly 179° and other two of 0.5° each. In Young’s double Slits experiment, a single source is split in two coherent sources. For the Young’s slits experiment, we must approximate that the slits act as point sources. This however is not the case, since the slits have finite width. In this way, it gives rise to unwanted diffraction effects that causes errors. The Fresnel biprism experiment overcomes this problem. A Fresnel biprism is a variation of Young’s Slits experiment. When monochromatic light through a narrow slit falls on biprism that divides it into two components. One of these component is refracted from upper portion of biprism and the other one refracted through lower portion. Two virtual coherent sources formed from the original source. In this case, two virtual coherent sources are point sources and replace slits in Young’s experiment. Q. What is the difference between the coherent sources produced by Young’s double slit arrangement and Fresnel biprism?

In the Davisson and Germer experiment, thevelocity of electrons emitted from the electrongun can be increased by [2011]a)increasing the potential difference betweenthe anode and filamentb)increasing the filament currentc)decreasing the filament currentd)decreasing the potential difference betweenthe anode and filamentCorrect answer is option 'A'. Can you explain this answer?
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In the Davisson and Germer experiment, thevelocity of electrons emitted from the electrongun can be increased by [2011]a)increasing the potential difference betweenthe anode and filamentb)increasing the filament currentc)decreasing the filament currentd)decreasing the potential difference betweenthe anode and filamentCorrect answer is option 'A'. Can you explain this answer? 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 In the Davisson and Germer experiment, thevelocity of electrons emitted from the electrongun can be increased by [2011]a)increasing the potential difference betweenthe anode and filamentb)increasing the filament currentc)decreasing the filament currentd)decreasing the potential difference betweenthe anode and filamentCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the Davisson and Germer experiment, thevelocity of electrons emitted from the electrongun can be increased by [2011]a)increasing the potential difference betweenthe anode and filamentb)increasing the filament currentc)decreasing the filament currentd)decreasing the potential difference betweenthe anode and filamentCorrect answer is option 'A'. Can you explain this answer?.
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