S.I.F. Study is fun

Resonance Column Objective To find the velocity of sound in air at room temperature using the resonance column by determining two resonance positions. Also find the velocity of sound in air at 0 0 C. Theory Stationary waves  Stationary waves are produced by the superposition of two waves of same frequency and amplitude travelling with same velocity in opposite directions. Due to the constructive interference, these waves produce certain fixed points along the medium which undergo zero displacement. These points of no displacement are known as  nodes . Midway between every nodes are regions of maximum displacement. These points are called  antinodes . Production of longitudinal stationary waves in air column Standing waves can be formed in a tube of air due to the interference of longitudinal sound waves travelling in opposite directions. In a pipe closed at one end, the closed end is a displacement node and the open end is a displacement antinode.  About Resonan

Sonometer Objective To study the relation between frequency and length of a given wire under constant tension using sonometer. To plot a graph between ν and l. To study the relation between length of a given wire and tension for constant frequency using sonometer. To plot a graph between l2 and T. Theory What is a Sonometer ? Sonometer consists of a hollow rectangular wooden box of more than one meter length, with a hook at one end and a pulley at the other end. One end of a string is fixed at the hook and the other end passes over the pulley. A weight hanger is attached to the free end of the string. Two adjustable wooden bridges are put over the board, so that the length of string can be adjusted. Production of transverse waves in stretched strings If a string which is stretched between two fixed points is plucked at its center, vibrations produced and it move out in opposite directions along the string. Because of this, a transverse wave travels along the string.