A metal wire of length `L` is suspended vertically from a rigid support. When a bob of mass `M` is attached to the lower end of wire, the elongation of the wire is `l:`

A body of mass M is attached to the lower end of a metal wire, whose upper end is fixed . The elongation of the wire is l .

A brass wire of cross-sectional area 2mm^(2) is suspended from a rigid support and a body of volume 100cm^(2) is attached to its other end. If the decrases in the length of the wire is 0.11mm , when the body is completely immersed in water, find the natural length of the wire.

A wire 2 m in length suspended vertically stretches by. 10 mm when mass of 10 kg is attached to the lower end. The elastic potential energy gain by the wire is (take g = 10 m//s^(2) )

A wire of uniform cross - section is suspended vertically from a fixed point , with a load attached at the lower end . Calculate the fractional change in frequency of the wire due to rise in temperature by t^(@) C . The coefficient of expansion of the wire is alpha .

A 5 m long cylindrical steel wire with radius 2xx10 ^(-3) m is suspended vertically from a rigid support and carries a bob of mass 100 kg at the other end . If the bob gets snapped , calculate the change in temperature of the wire ignorning radiation looses. ( Take g = 10 m//s ^(2) ) ( For the steel wire , young's modulus = 2.1 xx10^(11) N//m^(2) , Density = 7860 kg// m^(3) , Specific heat = 420 J/ kg -@ C ) .

A wire 2m in length suspended vertically stretches by 1mm when a mass of 20 kg is attached to the lower end. The elastic potential energy gained by wire is ………… (use g= 10 m//s^2)

A wire of length L and radius r suspended from rigid support of mass M gm be applied its free end, its elongation is l , then its Young's modulus is

A wire is suspended vertically from a rigid support. When loaded with a steel weight in air, the wire extends by 16cm . When the weight is completely immersed in Water, the extension is reduced to 14 cm . The relative density of the material of the weight is

A uniform wire of radius r and length L hanging vertically and fixed at its upper ends, is attached to a weight at its lower end. If Young's modulus for the material of the wire is Y, the extension is