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प्रश्न
Unit of radioactivity is _______
पर्याय
roentgen
curie
becquerel
all the above
उत्तर
All the above
APPEARS IN
संबंधित प्रश्न
Name the unit in which the work function of a metal is expressed.
State any two precautions to be taken while handling radioactive substances
What happens to the atomic number of element when (i) An α -particle, (ii) A β -particle 1 and (iii) γ-radiation is emitted?
Draw a diagram of a simple atom showing the nucleus and electrons. In this atom:
(a) What type of charge will there be on the nucleus?
(b) What is the value of this charge?
In a cathode ray tube state the purpose of the fluorescent screen.
How is a cathode ray tube used to convert an electrical signal into a visual signal?
What is meant by Radioactivity?
Justify with reason, whether the following nuclear reactions are allowed or not.
\[\ce{^A_Z X -> ^A_{Z + 1}Y + ^0_{-1}β}\]
Which part of the atom undergoes a change in the process of radioactive decay?
It is advised not to touch a radioactive substance by hand. Give reason.
