Physics Ultrasound devices operate with minimum frequency from 45 kHz 60 kHz 20kHz 35 kHz 45 kHz 60 kHz 20kHz 35 kHz ANSWER DOWNLOAD EXAMIANS APP
Physics Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons? 2.8 km, 0.25 km 2.2 km, 0.20 km 1.8 km, 0.15 km 3.3 km, 0.30 km 2.8 km, 0.25 km 2.2 km, 0.20 km 1.8 km, 0.15 km 3.3 km, 0.30 km ANSWER DOWNLOAD EXAMIANS APP
Physics One thousand microns is equal to 10-3m 10-9m 10-12m 10-6m 10-3m 10-9m 10-12m 10-6m ANSWER DOWNLOAD EXAMIANS APP
Physics A micron is equal to 0.1 mm 0.0001 mm 0.001 mm 0.01 mm 0.1 mm 0.0001 mm 0.001 mm 0.01 mm ANSWER DOWNLOAD EXAMIANS APP
Physics Why does water tank appear shallower when viewed from the top? Due to diffraction Due to refraction Due to reflection Due to total internal reflection Due to diffraction Due to refraction Due to reflection Due to total internal reflection ANSWER DOWNLOAD EXAMIANS APP
Physics The rotational effect of a force on a body about an axis of rotation is described in terms of Moment of force Centrifugal force Centripetal force Centre of gravity Moment of force Centrifugal force Centripetal force Centre of gravity ANSWER DOWNLOAD EXAMIANS APP
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