Physics Skating on ice is possible because The pressure on the ice due to skate raises its melting point Ice is cold The surface of ice is smooth The pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of water The pressure on the ice due to skate raises its melting point Ice is cold The surface of ice is smooth The pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of water ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not true about X-rays? Can be reflected or refracted Travel with the speed of light Can affect photographic plates Have low penetrating power Can be reflected or refracted Travel with the speed of light Can affect photographic plates Have low penetrating power ANSWER DOWNLOAD EXAMIANS APP
Physics Kepler's law of planetary motion states that the square of the time period is proportional to the Cube of the semi-major axis Semi-major axis Square of the semi-major axis Fourth power of the semi-major axis Cube of the semi-major axis Semi-major axis Square of the semi-major axis Fourth power of the semi-major axis ANSWER DOWNLOAD EXAMIANS APP
Physics A boat will submerge when it displaces water equal to its own: Volume Density Surface area Weight Volume Density Surface area Weight ANSWER DOWNLOAD EXAMIANS APP
Physics A copper disc has a hole. If the disc is heated, the size of the hole No change Decreases First increases and than decreases Increases No change Decreases First increases and than decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Physics Among the following materials sound travels fastest in Air Vacuum Water Steel Air Vacuum Water Steel ANSWER DOWNLOAD EXAMIANS APP
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