A plane electromagnetic wave of frequency 40 MHz travels in free spae in the x-direction. At some point and at some instant, the electric field `vecE` has its maximum value of 750 N/C in y-direction.
(i) What is the wavelenght of the wave ?
(ii) What is the period of the wave?
(iii) What is the amplitude of magnetic field?

Explanation

To solve the problem step by step, we will address each part of the question systematically.

### Given Data:
- Frequency \( f = 40 \, \text{MHz} = 40 \times 10^6 \, \text{Hz} \)
- Maximum electric field \( E_0 = 750 \, \text{N/C} \)
- Speed of light \( c = 3 \times 10^8 \, \text{m/s} \)

### (i) To find the wavelength \( \lambda \):
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