Physics A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat? Convection and radiation only Conduction, convection and radiation Conduction and convection only Conduction and radiation only Convection and radiation only Conduction, convection and radiation Conduction and convection only Conduction and radiation only ANSWER DOWNLOAD EXAMIANS APP
Physics A man stands in a lift which accelerates upwards. The resultant reaction force on the floor of the lift is Less than the weight of the man Zero Greater than the weight of the man Same as the weight of the man Less than the weight of the man Zero Greater than the weight of the man Same as the weight of the man ANSWER DOWNLOAD EXAMIANS APP
Physics Submerged objects can be located using Sonar Radar Quasar Pulsar Sonar Radar Quasar Pulsar ANSWER DOWNLOAD EXAMIANS APP
Physics Period of oscillation of 3 cm microwaves in seconds is 1 × 10–10 1 × 1010 0.001 0.01 1 × 10–10 1 × 1010 0.001 0.01 ANSWER DOWNLOAD EXAMIANS APP
Physics Surface tension in a liquid is due to : Electrical force between molecules. Cohesive force between molecules Adhesive force betweenmolecules Gravitational force between molecules Electrical force between molecules. Cohesive force between molecules Adhesive force betweenmolecules Gravitational force between molecules ANSWER DOWNLOAD EXAMIANS APP
Physics The device used for locating submerged objects under sea is. Radar Sonar Maser Laser Radar Sonar Maser Laser ANSWER DOWNLOAD EXAMIANS APP
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