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प्रश्न
In a cathode ray tube, what is the function of anode?
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उत्तर
In a cathode ray tube, the anode not only accelerates the electrons but also focuses them in a fine energetic beam.
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संबंधित प्रश्न
When does the nucleus of an atom tend to become radioactive?
Name a gas caused by the Greenhouse effect
Name the unit in which the work function of a metal is expressed.
In the following fig. shows a radioactive source S in a thick lead container. The radiations pass through an electric field between the plates P and Q. Complete the diagram to show the paths of α , β and γ radiations.
Why is the source S placed in a thick lead container?
How is a cathode ray beam affected while passing through an electric field?
State three ways of obtaining an electron-beam.
Assertion (A): Hydrogen atom consists of only one electron but its emission spectrum has may lines.
Reason (R): Only Lyman series is found in the absorption spectrum of hydrogen atom whereas in the emission spectrum, all the series are found.
What is radioactivity?
Which decay process involves the emission of a particle with a comparatively large mass and a positive charge?
