Multiple choice questions or MCQs are order of the day and with each passing day use of MCQs is on the increase especially for Entry Tests. OscillationsIn vibratory motion, velocity of a particle is maximum at the extreme position? For a particle executing SHM, its maximum displacement from mean position is called instantaneous displacement? Soldiers rhythmic march may set up oscillations of dangerously large amplitude in the bridge structure?
The velocity of a particle moving in circular path is directed sometimes along the tangent? In the absence of frictional effects, the mechanical energy of a system executing S? H? M? changes with time? In S? H? M, the magnitude of restoring force is independent of displacement from mean position? The heating and cooking of food evenly by microwave oven is an example of? Angular velocity is related to angular frequency by equation? While deriving the equation of time period for simple pendulum which quantity should be kept small? The vibrations of a factory floor caused by running of heavy machine is an example of …………? Vibrations?
The columns of soldiers are advised to break their ……………? while crossing hanging bridge? The sharpness of the resonance curve of a resonating system depends on the frictional loss of ………………? Phase of vibration indicates the state of motion of a vibrating particle and is generally called…………………What happens to the frequency of a pendulum as its oscillations die down from large amplitude to small?Is there a connection between F and X in mass spring system? Explain? A simple pendulum set into vibrations and left untouched, eventually stop? Why?What happens to the period of a simple pendulum if its length is doubled?