Physics Copper wires are generally used for electrical power transmission instead of iron wire because : Copper is lighter than iron Copper can take higher power than iron Copper is a better conductor of electricity than iron Copper is cheaper than iron Copper is lighter than iron Copper can take higher power than iron Copper is a better conductor of electricity than iron Copper is cheaper than iron ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not true about X-rays? Travel with the speed of light Have low penetrating power Can be reflected or refracted Can affect photographic plates Travel with the speed of light Have low penetrating power Can be reflected or refracted Can affect photographic plates ANSWER DOWNLOAD EXAMIANS APP
Physics A gradual increase in loudness is known as Timbre Fortissimo None of these Crescendo Timbre Fortissimo None of these Crescendo ANSWER DOWNLOAD EXAMIANS APP
Physics The dimension MLT–2 corresponds to Acceleration Work done Velocity Force Acceleration Work done Velocity Force ANSWER DOWNLOAD EXAMIANS APP
Physics A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 110 feet per second. After how many seconds does the ball attain its maximum height? 4.65 sec 3.44 sec 5.41 sec 2.87 sec 4.65 sec 3.44 sec 5.41 sec 2.87 sec ANSWER DOWNLOAD EXAMIANS APP
Physics What is the direction of torque? Same as the direction of applied force Parallel to the radius Opposite to the direction of applied force Perpendicular to the direction of applied force Same as the direction of applied force Parallel to the radius Opposite to the direction of applied force Perpendicular to the direction of applied force ANSWER DOWNLOAD EXAMIANS APP
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