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| 1. |
The quantity \sqrt{\mu_{0} \varepsilon_{0}} represents (a) speed of sound (b) speed of light in vacuum (c) speed of e.m.w. (d) inverse of speed of light in vacuum |
| Answer» ELECTROMAGNETIC waves are created by the vibration of an electric charge. This vibration creates a wave which has both an electric and a magnetic component. An electromagnetic wave TRANSPORTS its ENERGY through a vacuum at a speed of 3.00 x 108 m/s (a speed value commonly represented by the symbol c). | |