A dish antenna having a diameter of 14.0 m receives (at normal incidence) a radio signal from a distant source as shown in the figure below. The radio signal is a continuous sinusoldal wave with amplitude Eay - 0.800 uv/m. Assume the antenna absorbs all the radiation that falls on the dish.

A dish antenna having a diameter of 14.0 m receives (at normal incidence) a radio signal from a distant source as shown in the figure below. The radio signal is a continuous sinusoldal wave with amplitude Eay - 0.800 uv/m. Assume the antenna absorbs all the radiation that falls on the dish.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter34: Maxwell’s Equations And Electromagnetic Waves

Section: Chapter Questions

Problem 77PQ

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Question

A dish antenna having a diameter of 14.0 m recelves (at normal incidence) a radio signal from a distant source as shown in the figure below. The radio signal is a continuous sinusoldal wave with
amplitude Ey - 0.800 uv/m. Assume the antenna absorbs all the radiation that falls on the dish.
(a) What is the amplitude of the magnetic field in this wave?
(b) What is the intensity of the radiation received by this antenna?
W/m2
(c) What is the power received by the antenna?
(d) What force is exerted by the radio waves on the antenna?
N

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