1.

The dimensional formula for hole mobility in a semiconductor is :

Answer»

`[M^(-1)L^(0)T^(2)A]`
`[M^(-1)L^(2)T^(-2)A]`
`[M^(0)L^(0)T^(0)A]`
`[ML^(-2)T^(-2)A]`

Solution :`[mu_(H)]=("drift VELOCITYV")/("electric field E")=([LT^(-1)][AT])/([MLT^(-2)])=[M^(-1)T^(2)A].`
Hence `(a)` is the correct choice.


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