Advertisements
Advertisements
प्रश्न
Mention one important function of ear main parts:
State the principle on which the functioning of a nuclear reactor is based.
उत्तर
(i) Electron gun gives out fine beam of electrons.
(ii) The deflecting system deflect electron beam in horizontal and vertical direction.
(iii) The fluorescent screen gives bright spot on stirking of electron.
APPEARS IN
संबंधित प्रश्न
Write one use of cathode ray tube.
What happens if the negative potential is changed on a grid?
What do you mean by Mass number.
Name the three main parts of a Cathode Ray Tube.
Name the Different Radiations Which Are Emitted by the Radioactive Substances.
Are all the radiations mentioned by you, emitted in a single radioactive decay?
Justify with reason, whether the following nuclear reactions are allowed or not.
\[\ce{^A_Z X -> ^A_{Z + 1}Y + ^0_{-1}β}\]
Two radioactive nuclei are represented by xAp and yAq and when p and q are mass numbers and x, y are the atomic number. How can the products be represented, i .e., what are the new values of p, q. x and y after the emission of an α-particle and a β-particle from A and B respectively.
Two radioactive materials A and B have decay constants 25λ and 16λ respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of B to that of A will be "e" after a time `1/("a"lambda)` The value of a ______.
A radioactive element is placed in an evacuated chamber. Then the rate of radioactive decay will ______.