- Statement 2: Rain droplets, containing water molecules, absorb energy from the radio waves used for satellite communication (especially in Ku and Ka bands), leading to signal attenuation. This is known as rain absorption. - Statement 3: Rain droplets also scatter or disperse the radio waves, diverting them away from the dish antenna's focal point. This scattering effect further reduces the signal strength received by the antenna. This is known as rain scattering. - Statement 1: While antenna size affects overall signal gain, it is not the reason why signal loss occurs specifically during rain. A larger antenna might be less susceptible to rain fade than a smaller one because it collects more signal power, but the fundamental mechanisms causing the fade (absorption and scattering) are due to the rain itself, not the antenna size.
Television viewers using dish antenna to receive satellite signals do not receive signals during rain because : 1. of small size of antenna. 2. rain droplets absorb the energy of radio waves. 3. rain droplets disperse the energy of radio waves from their original direction. Which of the above statements are correct ?
Asked in UPPCS Prelims 2017 · Topic: Wave Motion (Diffraction of Waves (Qualitative Aspects))
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