Question

What is the frequency of radio waves corresponding to 10 m wavelength?

• A. $3\times {10}^{9}Hz$
• B. $3.3\times {10}^{-8}Hz$
• C. $3\times {10}^{7}Hz$
• D. $3.4\times {10}^{-7}Hz$

Answer 1

Answer: (C)

: Frequency $=\frac{velocity}{wavelength}$ $=\frac{3\times {10}^8}{10}=3\times {10}^{7}Hz$