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01 a) If the absorption coefficient of sea water is 2m", and if the eye can
perceive light of intensity smaller than the sunlight by a factor of 1018, what
is the greatest depth below the ocean surface at which light can be seen?

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3. Calculate the polarization loss factor (PLF)...in db and dimensionless of an antenna whose electric field polarization is expressed as: E = (ax+ ay)E(r,0,0), when the electric field of the incident wave given by E, = ax E, (x, y)e-k=