1.

The dimensions of the quantity namely (mu_(0)ce^(2))/(2h) is : where mu_(0)- permebility of free space, c-velocity of light, e=electron charge and h being Plank's constant :

Answer»

`[M^(0)LT]`
`[M^(0)L^(0)T]`
`[M^(0)L^(0)T^(0)]`
`[M^(-2)L^(-1)T^(3)]`

Solution :Here LET `X=(mu_(0)CE^(2))/(2h)`
Putting the dimensions of various QUANTITIES we get
`X=[MLT^(-2)A^(-2)]xx[M^(0)L^(1)T^(-1)]xx[A^(2)T^(2)]`
`=[M^(0)L^(0)T^(0)]xx[M^(-1)L^(-2)T]`
Thus `(c )` is the correct CHOICE .
`:.` Correct choice is `(c )`


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