Physics It is easy to burst a gas-filled balloon with a needle than with a nail. It is because Needle exerts more pressure than nail on the balloon. Gas is reactive with the needle. Nail is more longer than needle. Nail exerts more pressure than needle on the balloon. Needle exerts more pressure than nail on the balloon. Gas is reactive with the needle. Nail is more longer than needle. Nail exerts more pressure than needle on the balloon. ANSWER DOWNLOAD EXAMIANS APP
Physics Optical fibres are based on the phenomenon of Total Internal Reflection Diffraction Interference Dispersion Total Internal Reflection Diffraction Interference Dispersion ANSWER DOWNLOAD EXAMIANS APP
Physics Water cannot be used to extinguish fire caused by electric current, because 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 It may cause electrocution It may spoil the wiring ANSWER DOWNLOAD EXAMIANS APP
Physics A dynamo is a device which Creates electrical energy Creates mechanical energy Converts mechanical energy into electrical energy Converts electrical energy into mechanical energy Creates electrical energy Creates mechanical energy Converts mechanical energy into electrical energy Converts electrical energy into mechanical energy ANSWER DOWNLOAD EXAMIANS APP
Physics Instrument used to study the behaviour of a vibrating string is : Sonometer Barometer Hydrometer Hygrometer Sonometer Barometer Hydrometer Hygrometer ANSWER DOWNLOAD EXAMIANS APP
Physics A simple microscope consists of : A long focus concave lens A short focus concave lens A long focus convex lens A short focus convex lens A long focus concave lens A short focus concave lens A long focus convex lens A short focus convex lens ANSWER DOWNLOAD EXAMIANS APP
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