What are the wavelengths of electromagnetic wave in free space that have the following frequencies?(a) 4.00 × 1019 Hz7.5pm(b) 8.50 × 10° Hz5.45Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. cmNeed Help?Read It

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What are the wavelengths of electromagnetic wave in free space that have the following frequencies? (a) 4.00 x 1019 Hz 7.5 pm (b) 8.50 x 10° Hz 5.45 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. cm Need Help? Read It

What are the wavelengths of electromagnetic wave in free space that have the following frequencies? (a) 4.00 x 1019 Hz 7.5 pm (b) 8.50 x 10° Hz 5.45 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. cm Need Help? Read It

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 63P: A 2.50-rn-diameter university communications satellite dish receives TV sigia1s that have a maximum...

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A 2.50-rn-diameter university communications satellite dish receives TV sigia1s that have a maximum electric field strength (for one channel) of 7.50V/m (see below). (a) What is the intensity of this wave? (b) What is the power received by the antenna? (C) If the orbiting satellite broadcasts uniformly over an area of 1.501013m2 (a large fraction of North America), how much power does it radiate?
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MY NOTES ASK YOUR TEACHER ANOTHER A pulsar is a type of rotating neutron star that emits a beam of electromagnetic radiation. Imagine a pulsar that is moving toware Earth at a speed of 856.500 km/s. It emits mostly radio waves with a wavelength (at the source) of 132.500 cm. What is the observed wavelength of this radiation on Earth? (Assume the Earth is stationary. Consider the speed of light c = 3.00000 x 108 m/s. Give your answer to at least six significant figures.) 4.0 cm Additional Materials O Reading