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 parallel beam of radiation, as shown in the figure below. The average power during each pulse is 20.0 kW. → (a) What is the wavelength of these microwaves? cm (b) What is the total energy contained in each pulse? μJ (c) Compute the average energy density inside each pulse. mJ/m³ (d) Determine the amplitude of the electric field and magnetic field in these microwaves. Emax = kv/m μT Bmax= (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

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 parallel beam of radiation, as shown in the figure below. The average power during each pulse is 20.0 kW. → (a) What is the wavelength of these microwaves? cm (b) What is the total energy contained in each pulse? μJ (c) Compute the average energy density inside each pulse. mJ/m³ (d) Determine the amplitude of the electric field and magnetic field in these microwaves. Emax = kv/m μT Bmax= (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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