Question

Distinguish between α, β and γ rays.

Answer 1

 

SI. no	α particles	β particles	γ radiations
1	α particles are Helium nucleus 2He4	β particles are like electgrons -1β°	γ radiations are electromagnetic radiations.
2	α particles are positively charged.	β particles are negatively charged.	γ radiations have no charge.
3	the mass of each α particles is 4 a.m.u	The mass of each β particle is negligible.	γ radiations have no mass.
4	α particles has velocity less than velocity of light i.e 1 x 107 ms-1 .	Velocity of β particle is comparable to the velocity of light.	Velocity of γ radiation is equal to the velocity of light.
5	Ionosation power of a particles is maximum.It is about 100 times more than that of β particles	Ionisation power of β particles is about 100 times more than that of Y radiations	Ionisation power is least.
6	The penetrating power of a particle is least.	penetrating power of  β particles is less but 100 times more than that of α particle.	γ radiations have maximum penetration power. They are 100 times more penetrating than β paticles.
7	α particles are less deflected by electric and magnetic fields.	β particles are more deflected by electric and magnetic field but in opposite direction.	γ radiations are unaffected by electric and magnetic field.