Question: what is the dimensional formula of bulk modulus?
Answer: It is defined as the ratio of tangential stress to the shearing strain, within the elastic limit. Its urut is N/m2 or Pascal and its dimensional formula is [ML-1T-2]. Compressibility of a material is the reciprocal of its bulk modulus of elasticity. Its SI unit is N-1m2 and CGS unit is dyne-1 cm2.