Understanding Our Universe
3rd Edition
ISBN: 9780393614428
Author: PALEN, Stacy, Kay, Laura, Blumenthal, George (george Ray)
Publisher: W.w. Norton & Company,
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Chapter 4, Problem 37QAP
To determine
The wavelength of radio signal on AM and FM radio.
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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.
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.
a. What is the range of wavelengths for FM radio (90 MHz to 108 MHz)?
b. What is the range of wavelengths for AM radio (550 MHz to 1700 MHz)?
Chapter 4 Solutions
Understanding Our Universe
Ch. 4.1 - Prob. 4.1CYUCh. 4.2 - Prob. 4.2CYUCh. 4.3 - Prob. 4.3CYUCh. 4 - Prob. 1QAPCh. 4 - Prob. 2QAPCh. 4 - Prob. 3QAPCh. 4 - Prob. 4QAPCh. 4 - Prob. 5QAPCh. 4 - Prob. 6QAPCh. 4 - Prob. 7QAP
Ch. 4 - Prob. 8QAPCh. 4 - Prob. 9QAPCh. 4 - Prob. 10QAPCh. 4 - Prob. 11QAPCh. 4 - Prob. 12QAPCh. 4 - Prob. 13QAPCh. 4 - Prob. 14QAPCh. 4 - Prob. 15QAPCh. 4 - Prob. 16QAPCh. 4 - Prob. 17QAPCh. 4 - Prob. 18QAPCh. 4 - Prob. 19QAPCh. 4 - Prob. 20QAPCh. 4 - Prob. 21QAPCh. 4 - Prob. 22QAPCh. 4 - Prob. 23QAPCh. 4 - Prob. 24QAPCh. 4 - Prob. 25QAPCh. 4 - Prob. 26QAPCh. 4 - Prob. 27QAPCh. 4 - Prob. 28QAPCh. 4 - Prob. 29QAPCh. 4 - Prob. 30QAPCh. 4 - Prob. 31QAPCh. 4 - Prob. 32QAPCh. 4 - Prob. 33QAPCh. 4 - Prob. 34QAPCh. 4 - Prob. 35QAPCh. 4 - Prob. 36QAPCh. 4 - Prob. 37QAPCh. 4 - Prob. 38QAPCh. 4 - Prob. 39QAPCh. 4 - Prob. 40QAPCh. 4 - Prob. 41QAPCh. 4 - Prob. 42QAPCh. 4 - Prob. 43QAPCh. 4 - Prob. 44QAPCh. 4 - Prob. 45QAP
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- Visible light corresponds roughly to the range of wavelengths from 400 nm (violet) to 700 nm (red). 1 nm = 1 nanometer = 10-9 m. What is the frequency of visible light at a wavelength of 600 nm? f= Hz Enter your answer above using scientific notation with the format x.yzEq = x.yz x109. For example, 1.23 x 10-9 is entered as 1.23E-9. What is the wavelength of a visible light wave with a frequency of 4.64 x 10¹4 Hz? λ = nmarrow_forwardWhat is the wavelength (in m) of a radio signal with a frequency of 98.3 MHz? Enter the numerical part of your answer to three decimal figures. The speed of light in a vacuum (and in normal air) = Vlight = c = 3.00 × 108 m/s. Your Answer:arrow_forwardThe 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 AND minimum wavelength for AM radio in meters. Part (b) Caculate the maximum AND minimum wavelength for FM radio in meters.arrow_forward
- A radio station broadcasts at 650 kHz (650,000 cycles per sec). What is the wavelength of this signal?arrow_forwarda.Two points on earth’s surface at a distance of 1200 km are communicating using radio waves through an ionospheric layer whose height is 280 km. The maximum electron density of the layer is 6.95×1011 m−3. Calculate the value of frequency fmuf.b.An Ionosphere layer extends from the stratosphere upwards for about 250 mi and it consists three sub-layers. Discuss the effects of these sub-layers on wave propagation.arrow_forwardAssume that when I was 30 years old, I invented a spaceship capable of traveling at 95% of the speed of light, and take off to survey a peculiar infrared star 10 light years from earth. My daughter is 2 years old when I leave earth. I calculate that I age 20 years on my mission. A. while traveling to the star at 95% of the speed of light, I measure the wavelength of its light at 450 nm. What is the actual wavelength of the star's light? B. I turn around and head back to earth at 95% of the speed of light. WHat is the wavelength I see and I move away from the star? C. From my daughter prespective, how old is she when I return?arrow_forward
- What is the wavelength of the radio waves from a station broadcasting at 67.5 MHz? The speed of light is 3×108 m/s. The wavelength of the radio waves is ______m.arrow_forwardWhat is the frequency of infrared light that has a wavelength of 850 nm?A) 3.53 × 105 Hz B) 2.55 × 1011 Hz C) 3.53 × 1014 Hz D) 2.55 × 1014 Hzarrow_forwardA certain "band" of the electromagnetic spectrum spans the range of wavelengths from 144 um to 427 um. What is the highest frequency wave in this band? Give your answer in terahertz (1.00 tHz = 1.00x1012 Hz).arrow_forward
- Suppose an AM talk radio station broadcasts radio waves with a frequency of 950. kHz. Calculate the wavelength of these radio waves. Be sure your answer has the correct number of significant digits.arrow_forwardWhich statement about the electromagnetic spectrum and waves is correct? O Electromagnetic waves don't need a medium to travel O Soundwaves are part of the electromagnetic spectrum. O The sum of all electromagnetic Amplitudes is called the electromagnetic spectrum. O The sum of all waves is called the electromagnetic spectrum. O The sum of all electromagnetic waves is called the electromagnetic spectrum. O Electromagnetic waves all have the same speed. O Radiowaves are part of the electromagnetic spectrum.arrow_forwardDetermine the wavelength of the microwave radiation emitted … a. … by a microwave oven (f = 2.45x109 Hz). b. … by a cordless phone (f = 5.8x109 Hz).arrow_forward
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