Advertisements
Advertisements
प्रश्न
In a cathode ray tube, what is the function of anode?
Advertisements
उत्तर
In a cathode ray tube, the anode not only accelerates the electrons but also focuses them in a fine energetic beam.
APPEARS IN
संबंधित प्रश्न
Under which conditions does the nucleus of an atom tend to radioactive?
What is meant by radioactivity?
When is said to be the nucleus unstable?
What do you mean by Atomic number
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?
A radioactive nuclide `""_86^226` Ra decays by emission of two alpha particles, one beta particle and gamma rays. Which of the following is the resulting nuclide X?
An element P disintegrates by α - -emission and the new element suffers two further disintegrations, both by β -emission, to form an element Q. Explain the fact that P and Q are the isotopes.
State any two uses of cathode rays.
In a cathode ray tube state the purpose of the fluorescent screen.
Which of the following statements is/are correct?
- α particles are photons
- Penetrating power of γ radiation is very low
- Ionization power is maximum for α rays
- Penetrating power of γ radiation is very high
