Advertisements
Advertisements
प्रश्न
Why should a radioactive substance not be touched by hands?
Advertisements
उत्तर
Radioactive substance should not be touched by hands because these radiations are harmful; when radiation falls on the human body, they kill the human living tissues and cause radiation burns.
संबंधित प्रश्न
When does the nucleus of an atom tend to become radioactive?
What happens to the atomic number of element when (i) An α -particle, (ii) A β -particle 1 and (iii) γ-radiation is emitted?
Radioactive substances were found to give off three types of rays. Name them. How do they
(a) React to the magnetic field?
(b) React to the electric field?
(c) Act when different thickness of lead sheets is placed in their path?
A radioactive source emits three types of radiations.
Name the radiation which has the highest ionizing power.
What are the types of emission?
State three common properties of beta rays and cathode rays.
Explain, why radium paint, consisting of zinc sulphide and a trace of radium salt, glows in the dark?
Unit of radioactivity is _______
In the following atoms, which one is a radioisotope? Give one use of this isotope.
O16, C14, N14, He4
A deuteron strikes 8O16 nucleus with subsequent emission of an alpha particle. Identify the nucleus so produced:
