science
Grade-9
Easy
Question
Why only α-particle is used for the Rutherford experiment?
- It has high energy than other radioactive source.
- It has very low frequency
- It has very high frequency.
- It have low energy than the other radioactive sources.
Hint:
Alpha rays have high energy compared with other radioactive rays. So it has been used by Rutherford for his experiments.
The correct answer is: It has high energy than other radioactive source.
- Compared with beta and gamma rays, the alpha rays are lighter and have high speed.
- As their penetrating power is less, they are least affected by the electrons in the atom.
- Alpha rays possess high energy compared to other radioactive rays
- So, Rutherford selected alpha rays for his experiment.
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