Prepare for NEET Physics Mechanical Properties Of Solids with MCQs & PYQs on NEET.GUIDE. Get free practice, previous year questions, and expert solutions to improve your problem-solving skills.
A wire is stretched by a force. The work done by the force is equal to the:
Strain energy stored in the wire
Kinetic energy of the wire
Potential energy of the wire
Loss in heat due to stretching
Strain energy density is defined as:
Strain energy per unit volume
Strain energy per unit mass
Strain per unit volume
Stress per unit area
The strain energy stored in a stretched spring is proportional to:
The square of the extension
The extension
The cube of the extension
The inverse of the extension
If the extension of a wire is doubled, the strain energy stored in it becomes:
Four times
Two times
Eight times
Half
Which of the following is the correct unit for strain energy?
Joule
Pascal
Newton
Watt
When a spring is compressed, the work done on it is:
Stored as strain energy in the spring
Lost as heat
Converted to kinetic energy
Dissipated completely
A wire of length L and cross-sectional area A is stretched by a force F. If the Young's modulus of the material is Y, the strain energy stored in the wire is:
(FL)/(2AY)
(F^2 L)/(2AY)
(FL^2)/(2AY)
(F^2 L^2)/(2AY)
Two wires of the same material and length but different cross-sectional areas are stretched by the same force. The wire with the smaller cross-sectional area will have:
Less strain energy
Greater strain energy
The same strain energy
Zero strain energy
If the length of a wire is doubled and the radius is halved, keeping the stretching force constant, the strain energy stored in the wire becomes:
2 times
4 times
8 times
16 times
