Question

If frequency is 100 Mhz and speed of radio waves 3×10 power 8 m/s find wave length

Answer 1

• Velocity=c=3×10^8m/s
• Frequency=v=100MHz=100×10^3Hz

we know

$\boxed{\sf \lambda=\dfrac{c}{v}}$

$\\ \sf\longmapsto \lambda=\dfrac{3\times 10^8ms^{-1}}{100\times 10^3s^{-1}}$

$\\ \sf\longmapsto \lambda=0.03\times 10^5m$

$\\ \sf\longmapsto \lambda=3.0\times 10^3m$