Physics The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as Megasonics Infrasonics Ultrasonics Audible sounds Megasonics Infrasonics Ultrasonics Audible sounds ANSWER DOWNLOAD EXAMIANS APP
Physics The shape of our milky way galaxy is Elliptical Circular Spiral None of these Elliptical Circular Spiral None of these ANSWER DOWNLOAD EXAMIANS APP
Physics When a ring of metal is heated what happens to its hole ? Contracts It expands or contracts according to its diameter Expands It expands or contracts according to its coefficient of expansion Contracts It expands or contracts according to its diameter Expands It expands or contracts according to its coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Physics Negative feedback in amplifiers Increases bandwidth and decreases noise Decreases bandwidth and decreases noise Decreases bandwidth and increases noise Increases bandwidth and increases noise Increases bandwidth and decreases noise Decreases bandwidth and decreases noise Decreases bandwidth and increases noise Increases bandwidth and increases noise ANSWER DOWNLOAD EXAMIANS APP
Physics The unit of Planck's constant is Js–2 Js2 Js J/s Js–2 Js2 Js J/s ANSWER DOWNLOAD EXAMIANS APP
Physics A parachute descends slowly whereas a stone dropped from the same height falls rapidly, because None of these Stone is heavier than parachute Special mechanisms are present in parachute A parachute has a larger surface area and air resistance is more None of these Stone is heavier than parachute Special mechanisms are present in parachute A parachute has a larger surface area and air resistance is more ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS