(Solved): When the electric field (E) is increased by 2 times the electrical energy density (meaning electric ...

When the electric field (E) is increased by 2 times the electrical energy density (meaning electrical energy per unit volume) increases by 2 times decreases by 2 times decreases by 4 times increases by 4 times Question 7 If the speed of light in a medium is \( 217,936,539 \mathrm{~m} / \mathrm{s} \). Calculate the refractive index of the medium. (Write your answer till 2 decimal places and do not mention units in your answer and assume speed of light in vacuum is \( 300,000,000 \mathrm{~m} / \mathrm{s} \) )