Electromagnetic Waves Question 1
Question 1 - 2024 (01 Feb Shift 2)
If frequency of electromagnetic wave is $60 \mathrm{MHz}$ and it travels in air along $\mathrm{z}$ direction then the corresponding electric and magnetic field vectors will be mutually perpendicular to each other and the wavelength of the wave (in $\mathrm{m}$ ) is:
(1) 2.5
(2) 10
(3) 5
(4) 2
Show Answer
Answer: (3)
Solution:
$\lambda=\frac{\mathrm{c}}{\mathrm{f}}=\frac{3 \times 10^{8}}{60 \times 10^{6}}=5 \mathrm{~m}$
