Which one of the following is not a unit of young's modulus

Options

A. `Nm^(-1)`
B. `Nm^(-2)`
C. Dyne `cm^(-2)`
D. `MP a`

Answer

A

Explanation

As, young's modulus,
`Y=((("force")/("area")))/((("change in length")/("tangential length")))`
`=("stress")/("strain")=N//m^(2)` or pascal
and `y+("dyne")/(cm^(2))`
Then, `Mn^(-1)` is not the unit of young's modulus of elasticity.