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The frequency of the middle F note on a piano is 349.23 Hz. What is the wavelength of this note in cm? The speed of sound in air is 343.06 m/s.
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Which electromagnetic radiation is used for satellite communication?
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What are the wavelengths of (a) a 108-MHz FM radio wave, (b) a 2.4-GHz WIFI signal, (c) a 620-THz light wave, and (d) a 2.0-EHz X ray?
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17. A laser used in DVD players has a wavelength of 405 nm. What is the frequency of this light in hertz (s^-1)? A. 7.41 x 10^3 s^-1 B. 7.41 x 10^14 s^-1 C. 1.35 x 10^-6 s^-1 D. 1.35 x 10^-13 s^-1 E. 1.22 x 10^2 s^-1
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The frequency of a tuning fork is 401 Hz. Find the length of the shortest organ pipe which will give 6 beats/s with the fork. The velocity of sound in air is 336.8 m/s.
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If you live in a region that has a particular TV station, you can sometimes pick up some of its audio portion on your FM radio receiver. Explain how this is possible. Does it imply that TV audio is broadcast as FM?
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Radio stations are usually identified by their frequency. One radio station in the middle of the FM band has a frequency of 95.3 MHz. The speed of light is 2.99792 times 10^8 ; m/s. What is its wavelength? Answer in units of m.
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Shortwave radio is broad between 3.50 and 29.7MHz. To what range of wavelengths does this correspond? Why do you suppose this part of the spectrum is called shortwave radio?
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Identify the instrument(s) used to detect radiation. a. film badge dosimeter b. Geiger-Muller counter c. scintillation counter d. all of the above e. none of the above
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An FM radio station broadcasts at 103.9 MHz. What is the wavelength of the radio wave used for this broadcast? (c = 2.998 x 10^8 m/s)
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WWOZ broadcasts at a frequency of 90.7 MHz. What is the wavelength (in meters) of this radiation?
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KSLX radio rocks out at 100.7 MHz. Calculate the wavelength in meters for this Phoenix station.
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An FM station broadcasts classical music at 99.5 MHz (megahertz, or 106 Hz). Find the wavelength (in m, nm, and A) of these radio waves.
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An FM radio station broadcasts electromagnetic radiation at a frequency of 100.6 MHz. The wavelength of the radiation is ______ m. (a) 3.018 times 10^{10} (b) 2.982 times 10^{6} (c) 2.982 (d) 3.018 times 10^{16} (e) 0.3353
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The speed of sound in dry air at 20 C is 343.5 m s-1, and the frequency of the sound from the note B below middle C on the piano is 246.9s-1 (according to the American standard pitch scale). Calculate the wavelength of the sound and the time it will take
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A tuning fork with a vibration rate 128 Hz is held over a resonance tube. What are the two shortest distances at which resonance will occur at 20 ^oC?
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What does it mean to say that a radio station is “at 101.1 on your FM dial?”
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The frequency of the microwaves generated in a microwave oven is 2.45 \times 10^9 Hz. Calculate the wavelength of the microwaves generated.
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Wireless internet signals are what type of electromagnetic wave? a. Radio b. X-rays c. Infrared waves d. Microwaves
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What is the wavelength of a radio wave of frequency 101.1 MHz?
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Which instrument is used to measure heat radiation?
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Why does a sodium street lamp give off a different color light than a neon light?
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Does the heat that the light bulbs produce in our homes is a source and real life example of radiation?
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Do light bulbs give off ionizing radiation?
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What is the wavelength (in meters) of ultraviolet light with v = 5.5 times 10^3\text{ s}^{-1}?
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The E-string on an electric bass guitar has a length of 0.628 m and, when producing the note E, vibrates at a fundamental frequency of 41.2 Hz. Players sometimes add to their instruments a device call
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The wavelength of a monochromatic light source is measured to be 5.13 x10^-7 m in a diffraction experiment. (a)What is the energy of a photon of this light?
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FM radio station KRTH in Los Angeles broadcasts on an assigned frequency of 101 MHz with a power of 50,000 W. (a) What is the wavelength of the radio waves produced by this station? (b) Estimate the average intensity of the wave at a distance of 50.2 km f
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