List of top Physics Questions on elastic moduli

If the length of a wire is made double and radius is halved of its respective values. Then, the Young’s modulus of the material of the wire will :

A wire of length L and radius r is clamped rigidly at one end. When the other end of the wire is pulled by a force F, its length increases by 5 cm. Another wire of the same material of length 4L and radius 4r is pulled by a force 4F under same conditions. The increase in length of this wire is ___ cm.

A screw gauge gives the following readings when used to measure the diameter of a wire Main scale reading : $0\, mm$ Circular scale reading : $52$ divisions Given that $1\, mm$ on main scale corresponds to $100$ divisions on the circular scale. The diameter of the wire from the above data is :

When a body is strained, energy stored per unit volume is (Y-Young's modulus)

The TRUE statement is

Young?? modulus of a perfect rigid body is

A ball falling in a lake of depth 200 m shows 0.1% decrease in its volume at the bottom. The bulk modulus of the material of the ball is

The Young?? modulus of a perfectly rigid body is

The young's modulus of a wire of length $L$ and radius $r$ is $Y$ $N/m^{2}$. If the length and radius are reduced to $L/2$ and $r/2$, then its young's modulus will be

The length of a metal wire is l When the tension in it is T and is l when the tension is T. The natural length of the wire is

The increase in energy of a metal bar of length 'L' and cross-sectional area 'A' when compressed with a load 'M' along its length is (Y = Young�s modulus of the material of metal bar)

The bulk modulus of a spherical object is $'B'$. If it is subjected to uniform pressure $'p'$, the fractional decrease in radius is :

A metal rod of length ????and cross-sectional area ????is heated through $???? \, {^{\circ}C}$. What is the force required to prevent the expansion of the rod lengthwise ? [Y = Young's modulus of the material of rod , $\alpha$ = coefficient of linear expansion]

The value of $\tan (90-\theta)$ in the graph gives :

Steel ruptures when a shear of $ 3.5 \times 10^8 \,Nm^{-2}$ is applied. The force needed to punch a $1\, cm$ diameter hole in a steel sheet $0.3\, cm$ thick is nearly :

A cube is subjected to a uniform volume compression. If the side of the cube decreases by $2\%$ the bulk strain is

In designing, a beam for its use to support a load. The depression at centre is proportional to (where, $Y$ is Young?s modulus)

The bulk modulus of an ideal gas at constant temperature is

The Young's modulus of brass and steel are respectively $ 1.0\times 10^{11}Nm^{-2} $ and $ 2.0\times 10^{11}Nm^{-2}. $ .A brass wire and a steel wire of the same length are extended by $1 \,mm$ each under the same force. If radii of brass and steel wires are $R_B$ and $R_S$ respectively, then

A force $F$ is applied on the wire of radius $r$ and length $L$ and change in the length of wire is $l$. If the same force $F$ is applied on the wire of the same material and radius $2\, r$ and length $2\, L$, then the change in length of the other wire is

A metal wire of length $ l $ area of cross-section A and Young's modulus Y behaves as a spring of spring constant k given by

If the ratio of lengths, radii and Young's modulus of steel and brass wires shown in the figure are $a, b$ and $c$ respectively, the ratio between' the increase in lengths of brass and steel wires would be

The Bulk Modulus for an incompressible liquid is

Two rods of different materials with coefficients of linear thermal expansion $ {{\alpha }_{1}},{{\alpha }_{2}} $ and Youngs moduli Y1 and Y2 respectively are fixed between two rigid walls. They are heated to have the same increase in temperature. If the rods do not bend and if 0.1 : a: = 2: 3, then the thermal stresses developed in the two rods will be equal when $ {{Y}_{1}}:{{Y}_{2}} $ is equal to