Physical World
Radioactive substances emit $$\gamma$$ -rays which are:
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Single Choice
Of the following radiations, the one most easily stopped by air is:
A$$\alpha$$ -rays
Correct Answer
B$$\beta$$ -rays
C$$\gamma$$ -rays
DX-rays
Solution
Particles having less penetrating power can be blocked easily.
Order of penetrating power is $$X-rays> \gamma -rays> \beta -rays> \alpha -rays $$
Hence, $$\alpha-rays$$ is stopped easily by air.
The answer is option $$A$$.
SIMILAR QUESTIONS
Physical World
Which statement is incorrect?
Physical World
The velocity of $$\alpha$$ -rays is approximately:
Physical World
Alpha rays consist of a stream of:
Physical World
Which is the correct statement?
Physical World
$$\alpha$$ -rays have:
Physical World
Which has the least penetrating power?
Physical World
The charge exists on $$\gamma$$ -rays:
Physical World
Which of the following can be used to convert $$_7^{14}N$$ and $$_8^{17}O$$?
Physical World
The charge on gamma rays is:
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