VHF, or very high frequency, refers to radio frequency electromagnetic waves in the range 30 to 300 MHz. In the U.S., television stations broadcast channels 2 through 13 in the VHF range between 54.0 MHz and 216 MHz, with ranges72.0 to 76.0 MHz and 88.0 to 174 MHz not utilized for TV broadcasting. Each channel has a frequency width of 6.00 MHz. The table below gives the lower and upper frequency of each channel.ChannelLower edge (MHz)Upper edge (MHz)25460360664667257682682828871741808180186918619210192198111982041220421013210216(a) Calculate the broadcast wavelength range for channel 2. (Enter your answers from smallest to largest, in m.)smallest valuemlargest valuem(b) Calculate the broadcast wavelength range for channel 4. (Enter your answers from smallest to largest, in m.)smallest valuelargest valuemm(c) Calculate the broadcast wavelength range for channel 6. (Enter your answers from smallest to largest, in m.)smallest valuelargest value33

I hope this helps you! Thank you! Explanation:Step 1: Step 2: Step 3: Step 4:

Answered: VHF, or very high frequency, refers to…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter24: Electromagnetic Waves

Section: Chapter Questions

Problem 1OQ

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Excerpt from (Tsai & Hamblin, 2017) “Infrared (IR) is a type of electromagnetic radiation, including wavelengths between the 780 nm to 1000 μm. IR is divided into different bands: Near-Infrared (NIR, 0.78~3.0 μm), Mid-Infrared (MIR, 3.0~50.0 μm) and Far-Infrared (FIR, 50.0~1000.0 μm) as defined in standard ISO 20473:2007 Optics and photonics -- Spectral bands (Vatansever F, 2012). Several studies have reported that IR can improve the healing of skin wounds, photoprevention, relieve pain, stiffness, fatigue of rheumatoid arthritis, ankylosing spondylitis, potentiate photodynamic therapy, treat ophthalmic, neurological, and psychiatric disorders, and stimulate the proliferation of mesenchymal and cardiac stem cells (Vatansever F, 2012), (Tsai SR, 2015) (Barolet D, 2015).Soccer players have used FIR emitting clothing (density of 225 gm−2, 88% far IR radiation emitting polyamide 66 Emana yarn (PA66) fiber, 12% Spandex, emissivity of 0.88 and power emitted of 341 W/m2 at 37°C at 5–20 μm…
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