A student plots the frequency `(n)` of given length of a wire stretched by a given force versus diameter `(D)` of the wire. The correct plot figure is

A wire of length 5 m is stretched by 1 mm by a force of 1 N. The value of energy (in mJ) stored in the wire is

A steel wire of 2mm in diameter is stretched by applying a force of 72N . Stress in the wire is

A body moves under a variable force. For the body a plot of velocity versus time is shown in figure. The correct statement is

Two wires having same length and material are stretched by same force. Their diameters are in the ratio 1:3. The ratio of strain energy per unit volume for these two wires (smaller to larger diameter) when stretched is

Two wires having same length and material are stretched by same force. Their diameters are in the ratio 1:3. The ratio of strain energy per unit volume for these two wires (smaller to larger diameter) when stretched is

Two wires having same length and material are stretched by same force. Their diameters are in the ratio 1:3. The ratio of strain energy per unit volume for these two wires (smaller to larger diameter) when stretched is

If the lenghts and diameter of a wire decreased, then for the same the natural frequency of the stretched wire

A steel wire of 2mm in diameter is stretched by applying a force of 72N. Find the stress in the wire.