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The ratio of the radii of hydrogen atom ...

The ratio of the radii of hydrogen atom and its nucleus is `~ 10^(5)`.
Assuming the atom and the nucleus to be spherical.
(a) What will be the ratio of their sizes ?
(b) If atom is represented by planet earth `'R_(e)' = 6.4 xx 10^(6)m`, estimate the size of the nucleus.

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