# The dimensions of $(\mu_0 \epsilon_0)^{-1/2}$ are

Q: The dimensions of $\displaystyle (\mu_0 \epsilon_0)^{-1/2}$ are

(a) [L1/2T–1/2]

(b) [L–1T]

(c) [LT–1]

(d) [L1/2T1/2]

Ans: (c)

Sol: $(\mu_0 \epsilon_0)^{-1/2}$ is Dimensional formula of Speed of light .

Dimensional formula of speed = [LT–1]