A microwave source produces pulses of 13.0 GHz radiation, with each pulse lasting 1.00 ns. A parabolic reflector with a face area of radius R = 7.50 cm is used to focus the microwaves into a parallelbeam of radiation, as shown in the figure below. The average power during each pulse is 20.0 kW. (d) Determine the amplitude of the electric field and magnetic field in these microwaves.Emaxkv/mμTB==max(e) Compute the force exerted on the surface during the 1.00 ns duration of each pulse. Assume this pulsed beam strikes an absorbing surface.μN

Given data: frequency f = 13.0 GHz time t = 1.00 ns radius r = 7.50 cm average power Pavg = 20.0 kW…

(d) Determine the amplitude of the electric field and magnetic field in these microwaves. Emax kv/m μT B max (e) Compute the force exerted on the surface during the 1.00 ns duration of each pulse. Assume this pulsed beam strikes an absorbing surface. μN =

(d) Determine the amplitude of the electric field and magnetic field in these microwaves. Emax kv/m μT B max (e) Compute the force exerted on the surface during the 1.00 ns duration of each pulse. Assume this pulsed beam strikes an absorbing surface. μN =

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 72P: A microwave source produces pulses of 20.0-GHz radiation, with each pulse lasting 1.00 ns. A...

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A microwave source produces pulses of 20.0-GHz radiation, with each pulse lasting 1.00 ns. A parabolic reflector with a face area of radius 6.00 cm is used to focus the micro-waves into a parallel beam of radiation as shown in Figure P24.72. The average power during each pulse is 25.0 kW. (a) What is the wavelength of these microwaves? (b) What is the total energy contained in each pulse? (c) Compute the average energy density inside each pulse. (d) Determine the amplitude of the electric and magnetic fields in these microwaves. (e) Assuming that this pulsed beam strikes an absorbing surface, compute the force exerted on the surface during the 1.00-ns duration of each pulse.
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