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A conducting rod of length 0.2 m is rotated with angular velocity 10 rad/s about one end in a uniform magnetic field of 0.5 T perpendicular to the plane...
A particle is projected such that its velocity vector sweeps equal angles with horizontal at equal time intervals. The motion is best described as:
Which of the following quantities is a scalar?
What is the rate of change of momentum called?
A cylindrical wire of non-uniform cross-section has its radius increasing linearly from R to 3R over its length L. If a constant current I flows through...
The ratio of the total distance traveled by a body to the total time taken is its:
Which of the following waves require a medium to travel?
In AC circuits, AC meters measure –
The absolute temperature of a body A is five times that of another body B. For two bodies, the difference in wave lengths at which energy radiated is ma...
Which of the following is NOT a vector quantity?