Advertisements
Advertisements
प्रश्न
A radioactive substance is oxidized. Will there be any change in the nature its radioactivity? Give a reason for your answer
उत्तर
There will be no change in the nature of radioactivity of the substance. This is because oxidation is a chemical process and does not involve the nucleus of the substance.
APPEARS IN
संबंधित प्रश्न
Name the radiations which are absorbed by greenhouse gases in the earth’s atmosphere.
What is meant by radioactivity?
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?
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.
During the emission of a beta particle, the ______ number remains same.
How is a cathode ray beam affected while passing through an electric field?
In a cathode ray tube state. How is it possible to increase the rate of emission of electrons.
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
The mean lives of a radioactive substance are 1620 and 405 years for β-emission and β-emission respectively. The time after which three fourth of a sample will decay if it is decaying both by β-emission and β-emission simultaneously will be ______ years.
(Take ln 2 = 0.693)