Physics The focal length of a concave mirror with a radius of curvature of 20.0 cm is : 20 cm 5 cm 15 cm 10 cm 20 cm 5 cm 15 cm 10 cm ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic keepers are used to protect magnets from : Earth's magnetic field Demagnetization due to heating Self-demagnetization Effect of other magnets Earth's magnetic field Demagnetization due to heating Self-demagnetization Effect of other magnets ANSWER DOWNLOAD EXAMIANS APP
Physics Certain substances loose their electrical resistance completely at super low temperature. Such substances are called. Superconductors Semi conductors Dielectrics Perfect conductors Superconductors Semi conductors Dielectrics Perfect conductors ANSWER DOWNLOAD EXAMIANS APP
Physics When the milk is churned vigorously the cream from it is separated out due to Gravitational force Centrifugal force Frictional force Centripetal force Gravitational force Centrifugal force Frictional force Centripetal force ANSWER DOWNLOAD EXAMIANS APP
Physics Fish and other aquatic creatures can live inside a deep frozen pond because They can adapt themselves to live in ice Ice is a bad conductor of heat Fish are cold-blooded animals There will always be water just beneath the ice level They can adapt themselves to live in ice Ice is a bad conductor of heat Fish are cold-blooded animals There will always be water just beneath the ice level ANSWER DOWNLOAD EXAMIANS APP
Physics If the velocity of a body is halved its kinetic energy ________ Become 4 times Becomes 1/4 th Is also doubled Becomes half Become 4 times Becomes 1/4 th Is also doubled Becomes half ANSWER DOWNLOAD EXAMIANS APP
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