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Calculating Wavelength Practice Answers
Electromagnetic Waves:
1. The wavelength of a radio wave with a frequency of 102.5 MHz is 2.93 meters.
2. The wavelength of a microwave with a frequency of 2.4 GHz is 0.125 meters.
3. The wavelength of a red light wave with a frequency of 4.6 x 10^14 Hz is 6.52 x 10^-7 meters.
4. The wavelength of an X-ray wave with a frequency of 6.2 x 10^18 Hz is 4.84 x 10^-11 meters.
5. The wavelength of a gamma ray with a frequency of 3.5 x 10^20 Hz is 8.57 x 10^-12 meters.
6. The wavelength of a TV signal with a frequency of 54 MHz is 5.56 meters.
7. The wavelength of a blue light wave with a frequency of 6.0 x 10^14 Hz is 5.00 x 10^-7 meters.
8. The frequency of a radio wave with a wavelength of 10 meters is 30 MHz.
9. The frequency of an infrared wave with a wavelength of 1.2 micrometers is 2.50 x 10^14 Hz.
10. The wavelength of a visible light wave with a frequency of 5.1 x 10^14 Hz is 5.88 x 10^-7 meters.
Sound Waves:
1. The wavelength of a sound wave with a frequency of 440 Hz traveling in air at room temperature (20°C) is 0.78 meters.
2. The wavelength of a sound wave with a frequency of 1,000 Hz traveling in water at a temperature of 25°C is 0.34 meters.
3. The wavelength of a sound wave produced by a guitar string vibrating at a frequency of 330 Hz, with the speed of sound in air being 343 m/s, is 1.04 meters.
4. The wavelength of a sound wave with a frequency of 20,000 Hz traveling in air at room temperature (20°C) is 1.7 centimeters.
5. The wavelength of a sound wave with a frequency of 200 Hz traveling in steel with a speed of 5,960 m/s is 29.8 meters.
6. The frequency of a sound wave with a wavelength of 1.5 meters traveling in air at a temperature of 25°C is 227 Hz.
7. The wavelength of a sound wave with a frequency of 500 Hz traveling in water at a temperature of 20°C is 0.68 meters.
8. The wavelength of a sound wave with a frequency of 440 Hz traveling in steel at a temperature of 25°C is 1.53 meters.
9. The frequency of a sound wave with a wavelength of 0.2 meters traveling in air at a temperature of 20°C is 1,500 Hz.
10. The wavelength of a sound wave with a frequency of 1,000 Hz traveling in air at a temperature of 25°C is 0.34 meters.
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