Physics The height of a geo-stationary satellite from the Earth's surface is approximately : None of these 36,000 km 42,000 km 30,000 km None of these 36,000 km 42,000 km 30,000 km ANSWER DOWNLOAD EXAMIANS APP
Physics Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre? -3.75 diopters -11.25 diopters 11.25 diopters 3.75 diopters -3.75 diopters -11.25 diopters 11.25 diopters 3.75 diopters ANSWER DOWNLOAD EXAMIANS APP
Physics A single fixed pulley is used to draw water from a well because Efficiency is 100% Force is applied in a convenient direction Velocity ratio is low Mechanical advantage is high Efficiency is 100% Force is applied in a convenient direction Velocity ratio is low Mechanical advantage is high ANSWER DOWNLOAD EXAMIANS APP
Physics Tap water is placed in an open pad and allowed to evaporate. After some time the temperature of water Increases to a great extent Increases slightly Decreases slightly Decreases rapidly Increases to a great extent Increases slightly Decreases slightly Decreases rapidly ANSWER DOWNLOAD EXAMIANS APP
Physics Alternating current is converted into direct current by a Oscillator Rectifier Transformer Dynamo Oscillator Rectifier Transformer Dynamo ANSWER DOWNLOAD EXAMIANS APP
Physics Certain substances loose their electrical resistance completely at super low temperature. Such substances are called. Dielectrics Perfect conductors Superconductors Semi conductors Dielectrics Perfect conductors Superconductors Semi conductors ANSWER DOWNLOAD EXAMIANS APP
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