Directions: Solve for the value of velocity, wavelength and frequency of a wave. 1. Find the frequency of a red-light vacuum if its wavelength is 7.5 x 107 m? Given: Unknown: Formula: Solution: 3. A wave has a frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave? Given: Unknown: Formula: Solution: 5. 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? Given: Unknown: Formula: Solution: 2. What is the wavelength of a microwave that has a frequency of 4.2 x 108 Hz? Given: Unknown: Formula: Solution: 4. A wave has a wavelength of 10 m and a speed of 340 m/s. What is the frequency of the wave? Given: Unknown: Formula: Solution: 6. What is the wavelength of an infrared that has a frequency of 3.7 x 10° Hz? Given: Unknown: Formula: Solution: