The dimensions of Young's modulus per unit length are MᵃLᵇTᶜ. Find |a+b+c|.

Question

G1 Physics · Accepted Answer

Young's modulus has dimensions ML⁻¹T⁻². Per unit length gives ML⁻²T⁻². Thus a=1, b=-2, c=-2 and |a+b+c|=|1-2-2|=3.