If L and C are inductance and capacitance respectively, then the dimensional formula of $(\mathrm{LC})^{-\frac{1}{2}}$ is

• Correct answer
  A

  $\left[\mathrm{M}^0 \mathrm{~L}^0 \mathrm{~T}^{-1}\right]$
• B

  $\left[\mathrm{M}^1 \mathrm{~L}^1 \mathrm{~T}^{-1}\right]$
• C

  $\left[\mathrm{M}^0 \mathrm{~L}^1 \mathrm{~T}^1\right]$
• D

  $\left[\mathrm{M}^0 \mathrm{~L}^0 \mathrm{~T}^{-2}\right]$

Hence, the correct answer is option: 'A'.