Advertisements
Advertisements
Question
Name the radiations which are absorbed by greenhouse gases in the earth’s atmosphere.
Advertisements
Solution
Infrared radiations of long wavelengths are absorbed by greenhouse gases in the Earth’s atmosphere.
APPEARS IN
RELATED QUESTIONS
Answer the following questions based on a hot cathode ray tube.
State the approximate voltage used to heat the filament
Give the relative ionizing power of α, β and γ radiations.
In the following fig. shows a radioactive source S in a thick lead container. The radiations pass through an electric field between the plates P and Q. Complete the diagram to show the paths of α , β and γ radiations.

Why is the source S placed in a thick lead container?
Define the term radioactivity.
A radioactive substance is oxidized. What changes would you expect to take place in the nature of radioactivity? Explain your answer.
What happens to the position of an element in the periodic table when it emits an alpha particle
Justify with reason, whether the following nuclear reactions are allowed or not.
\[\ce{^A_Z X -> ^A_{Z + 1}Y + ^0_{-1}β}\]
It is advised not to touch a radioactive substance by hand. Give reason.
Assertion (A): The force of repulsion between atomic nucleus and α-particle varies with distance according to inverse square law.
Reason (R): Rutherford did α-particles scattering experiment.
