Physics The waveform of a certain signal can be studied by Cathode ray oscilloscope Sonometer P – n junction diode Spectrometer Cathode ray oscilloscope Sonometer P – n junction diode Spectrometer ANSWER DOWNLOAD EXAMIANS APP
Physics A device used for converting a.c. into d.c. is called Induction coil Rectifier Dynamo Transformer Induction coil Rectifier Dynamo Transformer ANSWER DOWNLOAD EXAMIANS APP
Physics A cyclist leans inwards when he is negotiating a curve so that No frictional force may be produced between the wheels and the axle Necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion. His weight may be reduced He may increase his speed No frictional force may be produced between the wheels and the axle Necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion. His weight may be reduced He may increase his speed ANSWER DOWNLOAD EXAMIANS APP
Physics A mirage occurs because of Interference of light Total internal reflection by layers of air Diffraction of light Reflection by hot ground Interference of light Total internal reflection by layers of air Diffraction of light Reflection by hot ground ANSWER DOWNLOAD EXAMIANS APP
Physics The frequency of ultrasound wave is typically Below 20 kHz Above 20,000 kHz Above 20 kHz Below 02 kHz Below 20 kHz Above 20,000 kHz Above 20 kHz Below 02 kHz ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of falling rain drops attains a terminal value because of Viscous force exerted by air Upward thrust due to air Surface tension Air current Viscous force exerted by air Upward thrust due to air Surface tension Air current ANSWER DOWNLOAD EXAMIANS APP
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