Which of the following represents Hooke’s Law?
A body is said to be perfectly elastic if
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Materials that show very small plastic range beyond elastic limit are called
If proportional limit is not exceeded, energy per unit volume in stretched wire is
When a 13.2 kg mass is placed on top of a vertical spring, the spring compresses by 5.93 cm. Find the force constant of the spring.
Dimensional formula of stress is same as that of
The length of the wire is increased by 1 mm on the application of a given load. In a wire of the same material but of length and radius twice that of the first, on application of the same force, extension produced is
The materials which have the same elastic properties in all directions are called __________.
Modulus of rigidity is defined as the
An iron bar of length l cm and cross section A cm2 is pulled by a force F dynes from the ends so as to produce an elongation l cm. Which of the following statements is correct?
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