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

Options

(a) 1 and 4
(b) 1 and 5
(c) 2 and 4
(d) 3 and 5

Correct Answer:

1 and 4

Explanation:

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