Physics The atmospheric layer reflecting radio waves is called Ozonosphere Stratosphere Ionosphere Mesosphere Ozonosphere Stratosphere Ionosphere Mesosphere ANSWER DOWNLOAD EXAMIANS APP
Physics If the velocity of a body is halved its kinetic energy ________ Is also doubled Become 4 times Becomes half Becomes 1/4 th Is also doubled Become 4 times Becomes half Becomes 1/4 th ANSWER DOWNLOAD EXAMIANS APP
Physics What is the minimum velocity required for a rocket to overcome earth's gravity and travel into space? 18 km/sec 35 km/sec 11.2 km/sec 21 km/sec 18 km/sec 35 km/sec 11.2 km/sec 21 km/sec ANSWER DOWNLOAD EXAMIANS APP
Physics A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water rises in the tube. The height of water rise in the tube can be increased by Decreasing the radius of the capillary tube Increasing the radius of the capillary tube None of these Increasing the height of water in the vessel Decreasing the radius of the capillary tube Increasing the radius of the capillary tube None of these Increasing the height of water in the vessel ANSWER DOWNLOAD EXAMIANS APP
Physics Pipelines in cold countries often burst in winter, because Temperature of ice is less than that of water Pipelines contract in their volume Water freezes and expands in its volume Pipelines expand due to freezing Temperature of ice is less than that of water Pipelines contract in their volume Water freezes and expands in its volume Pipelines expand due to freezing ANSWER DOWNLOAD EXAMIANS APP
Physics The waves used in sonography are Infra-red waves Micro waves Ultrasonic waves Sound waves Infra-red waves Micro waves Ultrasonic waves Sound waves ANSWER DOWNLOAD EXAMIANS APP
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