Question

If the electric field of an electromagnetic wave is given by,
𝐸⃗ = (4𝑥̂ + 3𝑦̂)𝑒 𝑖(𝜔𝑡+𝑎𝑥−600𝑦)
then the value of a is: (all values are in the SI units)

• A. 450
• B. --450
• C. 800
• D. −800

Answer 1

Answer: (A)

450

Answer 2

The correct option is (A): 450