When radius of wire is doubled, the elongation `dl` of the wire

(A): If radius of a sphere attached to a wire is doubled, elongation of the wire reduces to one forth of original value. (R): Elongation in a wire is directly proportional to area of cross section.

A wire extends by 1 mm when a force a applied. Double the force is applied to another wire of some material and length but half the radius of cross-section. The elongation of the wire in mm will be

The length of a wire increase by 8mm when a weight of 5 kg is hung. If all conditions are the same but the radius of the wire is doubled, find the increase in length.

The breaking force of a wire is .F. When the thickness of the wire is doubled, the breaking force will be

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 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:

Assertion If radius of cylinderical wire is doubled, then this wire can bear four times stress. Reason By doubling the radius, area of cross-section will become four times.

Assertion If radius of cylinderical wire is doubled, then this wire can bear four times stress. Reason By doubling the radius, area of cross-section will become four times.