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- A radio station broadcasts its radio waves with a power of 50,000 W. What would be the intensity of this signal if it is received on a planet orbiting Proxima Centuri, the closest star to our Sun, at 4.243 ly away?The AM radio band in a particular area has a frequency range of 554 kHz to 1620 kHz. How long is the wavelength of the radiation at the beginning of the range and how long is the wavelength of the radiation at the end of the range? Answer in units of m.Infrared radiation from young stars can pass through the heavy dust clouds surrounding them, allowing astronomers here on Earth to study the earliest stages of star formation, before a star begins to emit visible light. Suppose an infrared telescope is tuned to detect infrared radiation with a frequency of 3.30 THz. Calculate the wavelength of the infrared radiation. Be sure your answer has the correct number of significant digits.
- An AM radio broadcasting station uses a wavelength of 277.2 m. Calculate the frequency of these radio waves in kHz. Express your answer to 4 significant figures. ν = Answer kHzHow many minutes would it take a radio wave to travel from the planet Venus to Earth? (Average distance from Venus to Earth = 28 million miles). Determine also the frequency and energy emitted.What is the range of wavelengths for (a) FM radio (88 MHzto 108 MHz) and (b) AM radio (535 kHz to 1700 kHz)?
- Your 5G phone is sending an RF signal at a wavelength of 5.72 mm. What frequency is the wave (in gigahertz = 1E9 Hz)?Calculate the wavelengths of a 1.44-GHz cell phone signal. Express your answer in meters. Normal format with 3 SF.A radio station utilizes frequencies between commercial AM and FM. What is the frequency (in megahertz) of a 11.23 m wavelength channel?
- A radio station utilizes frequencies between commercial AM and FM. What is the frequency of a 11.12-m-wavelength channel?The frequency range for AM radio is 540 to 1600 kHz. The frequency range for FM radio is 88.0 to 108 MHz. Part (a) Caculate the maximum wavelength for AM radio in meters. Part (b) Caculate the minimum wavelength for AM radio in meters. Part (c) Caculate the maximum wavelength for FM radio in meters. Part (d) Caculate the minimum wavelength for FM radio in meters.What are the wavelength ranges for the following? (a) the AM radio band (540–1600 kHz) maximum wavelength ___ m minimum wavelength ___ m (b) the the FM radio band (88–108 MHz) maximum wavelength ___ m minimum wavelength ___ m
