Physics The unit of measurement of noise is Decibel Amplifier Hertz Acoustics Decibel Amplifier Hertz Acoustics ANSWER DOWNLOAD EXAMIANS APP
Physics When a person sitting on a swing stands up on the swing, the frequency of oscillation Decreases Does not change Increases Becomes infinite Decreases Does not change Increases Becomes infinite ANSWER DOWNLOAD EXAMIANS APP
Physics Water cannot be used to extinguish fire caused by electric current, because It may cause electrocution It may spoil the wiring It may cause hydrolysis It may cause electrolysis It may cause electrocution It may spoil the wiring It may cause hydrolysis It may cause electrolysis ANSWER DOWNLOAD EXAMIANS APP
Physics A soap bubble shows colours when illuminated with white light. This is due to Reflection Diffraction Polarisation Interference Reflection Diffraction Polarisation Interference ANSWER DOWNLOAD EXAMIANS APP
Physics When an unbalanced force acts on an object Causes change in motion of the object All of these Causes the object to move The speed & direction of the object will change Causes change in motion of the object All of these Causes the object to move The speed & direction of the object will change ANSWER DOWNLOAD EXAMIANS APP
Physics A hydrogen balloon floats up because of Weight of the balloon is less than the weight of air displaced by it. The pressure inside the balloon is more than the pressure outside it Air pressure decreases with decrease in weight Air pressure decreases with decrease in height Weight of the balloon is less than the weight of air displaced by it. The pressure inside the balloon is more than the pressure outside it Air pressure decreases with decrease in weight Air pressure decreases with decrease in height ANSWER DOWNLOAD EXAMIANS APP
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