Mechanical Prop...

The maximum load that a wire can sustain is $$W$$. If the wire is cut to half its value, the maximum load itcan sustain is

A uniform steel rod of cross-sectional area $$A$$ and length $$L$$ is suspended so that it hangs vertically. The stress at the middle point of the rod is :

Identify the case when an elastic metal rod does not undergo elongation:

The bulk modulus of water is $$2.0 \times 10^{9} N/m^{2}$$ The pressure required to increase the density of water by $$0.1\%$$ is :

Vessel of $$1 \times 10^{-3} m^{3}$$volume contains an oi. If a pressure of $$1.2 \times 10^{5} N/m^{2}$$is applied on it, thenvolume decreases by $$0.3\times 10^{-3}m^{3}$$ . The bulk modulus of oil is

Two wires of the same material have lengths in the ratio 1:2 and their radii are in the ratio $$1:\sqrt{2}$$. If they are stretched by applying equal forces, the increase in their lengths will be in the ratio :

The area of cross-section of a wire of length $$1.1$$ meter is $$1\:mm^{2}$$. It is loaded with 1 kg. If Young's modulus of copper is $$1.1\times 10^{11}N/m^{2}$$, then the increase in length will be (If $$g=10\:m/s^{2}$$) :

How much force is required to produce an increase of 0.2% in the length of a brass wire of diameter 0.6 mm? [Young modulus for brass $$=0.9\times 10^{11}N/m^{2}$$]:-

A force of $$10^{3}$$ N stretches the length of a hanging wire by $$1$$ millimeter. The force required to stretch a wire of same material and length but having four times the diameter by $$1$$ millimeter is :

A fixed volume of iron is drawn into a wire of length $$l$$. The extension produced in this wire by a constant force $$F$$ is proportional to :