What is the dimensional formula of `sqrt((gamma P/d)?`

Options

A. `[M^(@)L^(@)T^(@)]`
B. `[MLT^(@)]`
C. `[M^(@)LT^(-2)]`
D. `[M^(@)LT^(-1)]`

Answer

D

Explanation

`sqrt((gamma P)/d)` gives velocity of sound in air, so its dimensional formula is `[M^(0)LT^(-1)]`