Physics The frequency of ultrasound wave is typically Below 02 kHz Below 20 kHz Above 20 kHz Above 20,000 kHz Below 02 kHz Below 20 kHz Above 20 kHz Above 20,000 kHz ANSWER DOWNLOAD EXAMIANS APP
Physics The sensation of weightlessness in a spacecraft in an orbit is due to the Fact that spacecraft in the orbit has no energy Presence of gravity outside but not inside the spacecraft Absence of gravity outside Acceleration in the orbit which is equal to the acceleration due to gravity outside Fact that spacecraft in the orbit has no energy Presence of gravity outside but not inside the spacecraft Absence of gravity outside Acceleration in the orbit which is equal to the acceleration due to gravity outside ANSWER DOWNLOAD EXAMIANS APP
Physics Ventilators are provided near the ceiling of the room because These do not look nice in the lower part The exhaled warmer air rises up and goes out These provide cross ventilation in the room These provide some sunlight in the room These do not look nice in the lower part The exhaled warmer air rises up and goes out These provide cross ventilation in the room These provide some sunlight in the room ANSWER DOWNLOAD EXAMIANS APP
Physics Alternating current is converted into direct current by a Rectifier Transformer Dynamo Oscillator Rectifier Transformer Dynamo Oscillator ANSWER DOWNLOAD EXAMIANS APP
Physics Radio telescopes are better than optical telescopes because they can work during the day and night they can detect faint galaxies which no optical telescope can All of these they can work even in cloudy conditions they can work during the day and night they can detect faint galaxies which no optical telescope can All of these they can work even in cloudy conditions ANSWER DOWNLOAD EXAMIANS APP
Physics The GPS device in an automobile uses which communication channel? Radio frequency Microwave Satellite Infrared Radio frequency Microwave Satellite Infrared ANSWER DOWNLOAD EXAMIANS APP
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