Question

25 POINTS. Radar used microwaved yo check the speed of cars. If a speed of the microwaves is 2 000 000 m/ s and the wavelength is 0.0345m calculate the frequency.

Answer 1

Answer:
`5.79* 10^(7)\ \text{Hz}`

Explanation:

Given

Speed of radar wave
`v=2*10^(6)\ m/s`

the wavelength of radar wave
`\lambda =0.0345\ m`

We know,
`velocity=frequency* wavelength`

`frequency=\frac{\text{velocity}}{\text{wavelength}}`

`frequency=(2*10^6)/(3.45*10^(-2))`

`frequency=5.797* 10^(7)\ Hz`