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

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

If the length of a wire is doubled, then its Young's modulus

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 uniform nickel wire of length 3.14 m and radius 10^(-3) hangs vertically. If a mass of 20 kg is attached to its free end. The extension in the wire is, (Young's modulus of nickel =20xx10^(10)N//m^(2) )

A wire of length L and radius r is fixed at one end. When a stretching force F is applied at free end, the elongation in the wire is l . When another wire of same material but of length 2L and radius 2r , also fixed at one end is stretched by a force 2F applied at free end, then elongation in the second wire will be

The Young's modulus of a wire of length L and radius r is Y. If the length and radius is reduced to L/2 and r/2 respectively, then its Young' modulus will be

A thick rope of density rho and length L is hung from a rigid support. The increase in length of the rope due to its own weight is ( Y is the Young's modulus)

A copper rod length L and radius r is suspended from the ceiling by one of its ends. What will be elongation of the rod due to its own weight when and Y are the density and Young's modulus of the copper respectively?

A wire of mass m and length l is suspended from a ceiling. Due to its own wieght it elongates, consider cross-section are of wire as A ans Young's modulus of material of wire as Y. Th eelongation in the wire is