- Which two of the following five physical parameters have the same dimensions?
(a) energy density
(b) refractive index
© dielectric constant
(d) Young’s modulus
(e) magnetic field
(1) (a) and (e)
(2) (b) and (d)
(3) © and (e)
(4) (a) and (d)
Sol. Answer (4)
Energy density and Young’s modulus have same dimensional formula.