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A pipe open at both ends
A string vibrating between two fixed points
A pipe closed at both ends
A pipe open at one end and closed at the other
A rocket works on the principle of conservation of
A shell, initially at rest suddenly explodes into two equal fragments A and B. Which one of the following is observed?
A simple microscope consists of
A simple pendulum consists of a small metallic ball. This ball is called_.
A single fixed pulley is used to draw water from a well as
A single fixed pulley is used to draw water from a well because
A single phase full converter can operate in
A small drop of oil spreads over water because
A small gap is left at the joints of rails in a railway track to
A small mass is placed on a turntable that is rotating at 45 r.p.m. The acceleration of the mass is