A plane electromagnetic wave of frequency 500 MHz is travelling in vacuum along y-direction. At a particular point in space and time, B→ = 8.0×10^−8z^T. The value of electric field at this point is : (speed of light = 3 × 10^8 ms–1) x^,y^,z^ are unit vectors along x, y and z direction.
![](https://sahay.guru/wp-content/uploads/2021/09/Solutions-6-2-774x221.jpg)