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| Which two of the following five physical parameters have the same dimensions? (1) energy density (2) refractive index (3) dielectric constant (4) Young's modulus (5) magnetic field |
2 and 4
3 and 5 1 and 4 1 and 5 |
| 1 and 4 |
| dimension of both energy density and Young's modulus is same as that of stress. |
