Answer:
(a) Here, the dimensional formula of e is
,
the dimensional formula of is dimensional
formula of c is and that of is .
Therefore, the
quantity has the dimensions of
length.
Value of
this quantity is
It is very
small as compared to the size of the atom.
Now h has
the dimensional formula therefore, the quantity has
the dimensions of length. Its value is
This is nearly equal
to the size of the atom.
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