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An Em wave is said to be vertically polarized when the angle between the electrical field and earth is _______(a) 50°(b) 20°(c) 90°(d) 180° |
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Answer» The correct choice is (c) 90° Easy explanation: Polarization refers to the orientation of magnetic and electric fields with respect to the earth. If an electric field is parallel to the earth, the electromagnetic wave is said to be horizontally polarized; if the electric field is perpendicular to the earth, the wave is vertically polarized. |
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