Wave speed, frequency and wavelength

Wave Properties

1. WAVE SPEED, FREQUENCY AND WAVELENGTH

2. QUANTITY SYMBOL QUANTITY TERM UNIT UNIT SYMBOL V Wave speed meters/ second m/s  Wavelength meter M f frequency Hertz Hz

3. EM Waves 3X10 8 m/s It is equal to the speed of light V= f

4. What is the frequency of radio waves with wavelength of 20 m? Given : v= c = 3X10 8 m/s λ= 20 m f = ? v=c= λf f=c/λ = 3X10 8 m/s 20 m f= 1.5 X10 7 Hz

5. V=  f Sample Problem: A wave has a frequency of 50 Hz and a wavelength of 10m. What is the speed of the wave? A wave has a frequency of 5Hz and a speed of 25 m/s. What is the wavelength of the wave? A wave has wavelength of 10m and a speed of 340 m/s. What is the frequency of the wave?

6. Solve the ff : A wave with a frequency of 14 Hz has a wavelength of 3 m. At what speed will this wave travel? The speed of a wave is 65 m/s. If the wavelength of the wave is 0.8 m, what is the frequency of the wave? A wave has a frequency of 46 Hz and a wavelength of 1.7 m. What is the speed of this wave? A wave travelling at 230 m/s has a wavelength of 2.1m. What is the frequency of this wave?

7. A wave with a frequency of 500 Hz is travelling at a speed of 200 m/s. What is the wavelength? A wave has a frequency of 540 Hz and is travelling at 340 m/s. What is its wavelength? A wave has a wavelength of 125 m is moving at a speed of 20 m/s. What is its frequency? Radio waves travel at a speed of 3000,000,000 m/s. WFNX broadcasts radio waves at a frequency of 101, 700,000 Hertz. What is the wavelength of WFNX’s radio waves?