Question
Distinguish between $\alpha , \beta$ and $γ$ rays.
| SI. no | α particles | $\beta$ particles | γ radiations |
| $1$ | $\alpha $ particles are Helium nucleus 2He4 | $\beta$ particles are like electgrons $_{-1}\beta^\circ$ | $γ$ radiations are electromagnetic radiations. |
| $2$ | $\alpha $ particles are positively charged. | $\beta$ 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 $\beta$ particle is negligible. | $γ$ radiations have no mass. |
| $4$ | α particles has velocity less than velocity of light i.e $1 x 10^7ms^{-1}.$ | Velocity of $\beta$ 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 $\beta$ particles | Ionisation power of $\beta$ particles is about $100$ times more than that of $γ$ radiations | Ionisation power is least. |
| $6$ | The penetrating power of a particle is least. | penetrating power of $\beta$ 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 $\beta$ paticles. |
| $7$ | $\alpha$ particles are less deflected by electric and magnetic fields. | $\beta$ particles are more deflected by electric and magnetic field but in opposite direction. | $γ$ radiations are unaffected by electric and magnetic field. |
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