Physics What is the change in the angular momentum of a system as per the Law of Conservation of Angular momentum, if the total external torque acting is zero? Remains constant Increases exponentially None of these Becomes zero Remains constant Increases exponentially None of these Becomes zero ANSWER DOWNLOAD EXAMIANS APP
Physics Total internal reflection can not take place when light goes from : Glass to air Water to air Water to glass Glass to water Glass to air Water to air Water to glass Glass to water ANSWER DOWNLOAD EXAMIANS APP
Physics Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? I.Diffusion II.Refraction III.Internal reflection I and III I and II II and III I, II and III I and III I and II II and III I, II and III ANSWER DOWNLOAD EXAMIANS APP
Physics What is the direction of torque? Same as the direction of applied force Opposite to the direction of applied force Parallel to the radius Perpendicular to the direction of applied force Same as the direction of applied force Opposite to the direction of applied force Parallel to the radius Perpendicular to the direction of applied force ANSWER DOWNLOAD EXAMIANS APP
Physics During hot weather, the fan produces a feeling of comfort. This is because Fan supplies cool air Conductivity of air increases Our perspiration eva-porates rapidly Fan cools the air Fan supplies cool air Conductivity of air increases Our perspiration eva-porates rapidly Fan cools the air ANSWER DOWNLOAD EXAMIANS APP
Physics The sudden fall of atmospheric pressure indicates Rain Fair weather Cold weather Storm Rain Fair weather Cold weather Storm ANSWER DOWNLOAD EXAMIANS APP
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