In an atom the ratio of radius of orbit of electron to the radius of nucleus is
In an atom the ratio of radius of orbit of electron to the radius of nucleus is
A. `10^3`
B. `10^4`
C. `10^5`
D. `10^6`
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Correct Answer - C
The radius of orbit of electrons `=10^(-10)m` radius of nucleus `=10^(-15)m`
`therefore` Ratio `=10^(-10)/(10^(-15))=10^(5)`
Hence the radius of electron orbit is `10^(5)` times larger than the radius of nucleus.
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