Mechanical Properties of Solids questions
395 published questions with worked solutions.
- A 1 m long steel wire of cross-sectional area 1 mm^2 is extended by 1 mm. If Y=2 10^ 11 Nm^ -2 , then the work done is
- An aluminium rod, Young's modulus 7.0 10^ 9 Nm^ -2 , has a breaking strain of 0.2%. The minimum cross-sectional area of the rod...
- In steel, the Young's modulus and the strain at the breaking point are 2 10^ 11 Nm^ -2 and 0.15 respectively. The stress at the...
- A wire (Y=2 10^ 11 Nm^ -2 ) has length 1 m and cross-sectional area 1 mm^2. The work required to increase its length by 2 mm is
- The Young's modulus of the material of a wire is 6 10^ 12 Nm^ -2 and there is no transverse strain in it. Then its modulus of...
- One end of a steel wire is fixed to the ceiling of an elevator moving up with an acceleration 2 ms^ -2 and a load of 10 kg hangs...
- The diameter of a brass wire is 0.6 mm and Y is 9 10^ 10 Nm^ -2 . The force which will increase its length by 0.2% is about
- A spring is extended by 30 mm when a force of 1.5 N is applied to it. Calculate the energy stored in the spring when hanging...
- The ratio of diameters of two wires of the same material is n:1. The length of each wire is 4 m. On applying the same load, the...
- A cube of side 10 cm is subjected to a tangential force of 5 10^5 N at the upper face, keeping the lower face fixed. The upper...
- A wire suspended vertically from one of its ends is stretched by attaching a weight of 200 N to the lower end. The weight...
- A substance breaks down by a stress of 10^6 Nm^ -2 . If the density of the material of the wire is 3 10^3 kg ,m^ -3 , then the...
- Equal torsional torques act on two rods x and y having equal length. The diameter of rod y is twice that of rod x. If _x and _y...
- When a weight of 5 kg is suspended from a copper wire of length 30 m and diameter 0.5 mm, the length increases by 2.4 cm. If the...
- A metal rod of Young's modulus 2 10^ 10 Nm^ -2 undergoes an elastic strain of 0.06%. The energy per unit volume stored, in Jm^ -3...
- 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...
- A copper bar of length L and area of cross-section A is placed in a chamber at atmospheric pressure. If the chamber is evacuated,...
- A spherical ball contracts in volume by 0.01% when subjected to a normal uniform pressure of 100 atmospheres. What is the bulk...
- Two identical wires of rubber and iron are stretched by the same weight. Then the number of atoms in the iron wire will be
- Forces of 100 N each are applied in opposite directions on the upper and lower faces of a cube of side 20 cm. The upper face is...
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