Advertisements
Advertisements
प्रश्न
A radioactive element is placed in an evacuated chamber. Then the rate of radioactive decay will ______.
पर्याय
Decrease
Increase
Remain unchanged
Depend on the surrounding temperature
Advertisements
उत्तर
A radioactive element is placed in an evacuated chamber. Then the rate of radioactive decay will remain unchanged.
Explanation:
The properties of the atom's nucleus, not external factors, determine an element's rate of radioactive decay.
APPEARS IN
संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube
Name the charged particles
Arrange α, β, and γ rays in ascending order with respect to their
1) Penetrating power.
2) Ionising power
3) Biological effect
A radioactive source emits three types of radiations. Name them.
(i) Name the radiations which are charged.
(ii) Name the radiations which are most penetrating.
(iii) Name the radiations which travel with the speed of light.
(iv) Name the radiations which have the largest mass.
Define free electrons.
State two properties that a substance should possess when used as a thermionic emitter.
Name a common device where a hot cathode ray tube is used.
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.
Which part of the atom undergoes a change in the process of radioactive decay?
Two radioactive sources A and B of half lives of 1 hour and 2 hours, respectively, initially contain the same number of radioactive atoms. At the end of two hours, their rates of disintegration are in the ratio of ______.
