A tuning fork with "concert pitch" vibrates 440 times per second (440 Hz). Since the speed of sound in air is 344 m/s, the wavelength of this sound wave is 78 cm. Suppose that an electromagnetic wave source vibrates at 440 Hz. What is the wavelength of the resulting electromagnetic wave? Choose the closest number after rounding. O My Answer: 70 cm 70 cm 700 m 70 mm 70 km 700 km
A tuning fork with "concert pitch" vibrates 440 times per second (440 Hz). Since the speed of sound in air is 344 m/s, the wavelength of this sound wave is 78 cm. Suppose that an electromagnetic wave source vibrates at 440 Hz. What is the wavelength of the resulting electromagnetic wave? Choose the closest number after rounding. O My Answer: 70 cm 70 cm 700 m 70 mm 70 km 700 km
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Transcribed Image Text:A tuning fork with "concert pitch" vibrates 440 times per second (440 Hz). Since the speed of sound in air is
344 m/s, the wavelength of this sound wave is 78 cm. Suppose that an electromagnetic wave source vibrates
at 440 Hz. What is the wavelength of the resulting electromagnetic wave? Choose the closest number after
rounding. O
My Answer: 70 cm
70 cm
700 m
70 mm
70 km
700 km
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