Physics Which phenomenon is responsible for the echo of sound wave? Interference Reflection Refraction Polarisation Interference Reflection Refraction Polarisation ANSWER DOWNLOAD EXAMIANS APP
Physics Optical fibre works on the scattering principle of refraction total internal reflection interference scattering principle of refraction total internal reflection interference ANSWER DOWNLOAD EXAMIANS APP
Physics A hydrogen balloon floats up because of Air pressure decreases with decrease in height The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight Air pressure decreases with decrease in height The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight ANSWER DOWNLOAD EXAMIANS APP
Physics Energy per unit volume is dimensionally equal to Pressure Work Density Force Pressure Work Density Force ANSWER DOWNLOAD EXAMIANS APP
Physics Addition of suitable impurities into semiconductor, is called Doping Forming Mixing Diluting Doping Forming Mixing Diluting ANSWER DOWNLOAD EXAMIANS APP
Physics Which compressor is usually used in AC? Centrifugal Reciprocating Axial Rotary Centrifugal Reciprocating Axial Rotary ANSWER DOWNLOAD EXAMIANS APP
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