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? Becomes zero None of these Increases exponentially Remains constant Becomes zero None of these Increases exponentially Remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is responsible for the working of Newton's colour disc experiment ? Formation of pure spectra Principle of complementary colour Formation of impure spectra Persistence of vision Formation of pure spectra Principle of complementary colour Formation of impure spectra Persistence of vision ANSWER DOWNLOAD EXAMIANS APP
Physics The spokes used in the wheel of a bicycle increase its Acceleration Momentum Velocity Moment of inertia Acceleration Momentum Velocity Moment of inertia ANSWER DOWNLOAD EXAMIANS APP
Physics A boy is swinging a ball attached to a string in a horizontal circle. If the string snaps None of these It will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down It will fall down at the same place where the string breaks The ball will travel towards the center of the circle and fall down None of these It will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down It will fall down at the same place where the string breaks The ball will travel towards the center of the circle and fall down ANSWER DOWNLOAD EXAMIANS APP
Physics The device used to change the speed of an electric fan is Regulator Amplifier Rectifier Switch Regulator Amplifier Rectifier Switch ANSWER DOWNLOAD EXAMIANS APP
Physics When an atom loses an electron it becomes Positive ion Negative ion Neutron None of these Positive ion Negative ion Neutron None of these ANSWER DOWNLOAD EXAMIANS APP
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