Advertisements
Advertisements
Questions
State any two precautions to be taken while handling radioactive substances.
Give two important precautions that should be taken while handling radioactive materials.
Advertisements
Solution
The two safety precautions to be taken while handling radioactive substances are (any two):
- Radioactive substances should be kept in thick lead containers with a very narrow opening so as to restrict the radiations coming out from other directions.
- Radioactive materials should be handled with long lead tongs.
- People working with radioactive substances should put on special lead-lined aprons and lead gloves.
RELATED QUESTIONS
Arrange α, β, and γ rays in ascending order with respect to their
1) Penetrating power.
2) Ionising power
3) Biological effect
Represent the change in the nucleus of a radioactive element when a β particle is emitted.
A radioactive nucleus `""_"Z"^"A"` X first emits a beta particle and then an alpha particle to give the resulting nucleus `""_"Q"^"P"` Y What will be the values of P and Q in terms of A and Z?
What do you mean by electron emission?
From α, β and γ-rays, name the one which travels with the speed of light?
Explain, why radium paint, consisting of zinc sulphide and a trace of radium salt, glows in the dark?
State one use of radio-isotopes.
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 ______.
In the following atoms, which one is a radioisotope? Give one use of this isotope.
O16, C14, N14, He4
