関連ワード:  which one is dimensionless quantity    which one is dimensionless quantity among the following    which one is unitless quantity    which one is dimensionless physical quantity    which one of the following is dimensionless quantity    which is dimensionless quantity    which is dimensionless quantity stress or strain    which is dimensionless quantity example    which is dimensionless quantity class 11    which one of the following is dimensionless physical quantity