List of top Physics Questions on Stress and strain

A wire can sustain a weight of 100 kg before it breaks. The wire is cut into two equal parts. Without breaking each part can hold weight up to:
A wire is stretched by \( 2 \) mm under force \( 100 \) N. Elastic energy stored is:
A wire of length \( 2 \) m and area \( 1 \times 10^{-6} \, m^2 \) stretches by \( 1 \) mm under force \( 200 \) N. Young's modulus is:
When a wire made of material with Young's modulus Y is subjected to a stress S, the elastic potential energy per unit volume stored in the wire is
If the pressure on a body is increased from \( 200 \) kPa to \( 250 \) kPa, the volume of the body decreases by \( 0.25% \). The compressibility of the material of the body (in \( m^2 N^{-1} \)) is:
The elastic potential energy stored in a copper rod of length one meter and area of cross-section \(1 \, \text{mm}^2\) when stretched by 1 mm is:
If two soap bubbles each of radius \(2 \, \text{cm}\) combine in vacuum under isothermal conditions, then the radius of the new bubble formed is
If the pressure on a body is increased from \( 200 \) kPa to \( 250 \) kPa, the volume of the body decreases by \( 0.25% \). The compressibility of the material of the body (in \( m^2 N^{-1} \)) is:
When a wire made of material with Young's modulus Y is subjected to a stress S, the elastic potential energy per unit volume stored in the wire is
When a wire of length $L$ clamped at one end is pulled by a force $F$ from the other end, its length increases by $L'$. If the radius and the applied force are halved, then the increase in its length is
As shown in the figure, a light uniform rod PQ of length 150 cm is suspended from the ceiling horizontally using two metal wires A and B tied to the ends of the rod. The ratios of the radii and the Young’s modulus of the materials of the two wires A and B are respectively 2 : 3 and 3 : 2. The position at which a weight should be suspended from the rod such that the elongations of the two wires become equal is
light uniform rod PQ of length 150 cm is suspended
A thick metal wire of density \( \rho \) and length \( L \) is hung from a rigid support. The increase in length of the wire due to its own weight
A steel rod of radius 20 mm and length of 2 m is acted upon by a force of 400 kN along the length. The values of stress and strain are respectively (Y\(_{\text{steel}}\) = 2 \( \times \) 10\(^{11}\) Nm\(^{-2} \))
The elastic limit of a metal is \[ \frac{400}{\pi}\text{ MPa}. \] If a rod of this metal is to support a \(484\text{ N}\) load without exceeding its elastic limit, the minimum diameter of the rod is