Which of the following quantities have the same S.I. unit as that of modulus of elasticity?(a) Energy per unit volume(b) Force per unit length(c) Energy(d) Change in lengthI had been asked this question in quiz.My question comes from Solids Mechanical Properties in division Mechanical Properties of Solids of Physics – Class 11

Which of the following quantities have the same S.I. unit as that of m

1.	Which of the following quantities have the same S.I. unit as that of modulus of elasticity?(a) Energy per unit volume(b) Force per unit length(c) Energy(d) Change in lengthI had been asked this question in quiz.My question comes from Solids Mechanical Properties in division Mechanical Properties of Solids of Physics – Class 11
Answer» Right choice is (a) ENERGY per unit VOLUME Best explanation: Modulus of ELASTICITY is the ratio of stress to STRAIN. Its unit is, therefore, N/m^2. Energy per unit volume has the unit Nm/m^3 = N/m^2. FORCE per unit length has the unit N/m. So, the correct answer is energy per unit volume.

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