Question

If a source is transmitting electromagnetic wave of frequency $8.2 \times 10^{6} Hz$, then wavelength of the electromagnetic waves transmitted from the source will be_________

• A. 36.5 m
• B. 40.5 m
• C. 42.3 m
• D. 50.9 m

Answer 1

Answer: (A)

Frequency of electromagnetic wave,
$v=8.2 \times 10^{6} Hz$
Wavelength, $\lambda=$ ?
We know that, velocity of electromagnetic wave is given as
$c=v \lambda \Rightarrow \lambda=\frac{c}{v}$
$=\frac{3 \times 10^{8}}{8.2 \times 10^{6}}=36.5\, m$