Advertisements
Advertisements
Question
Which one of these is more elastic, steel or rubber? Why?
Solution
Steel is more elastic than rubber. If equal stress is applied to both steel and rubber, the steel produces less strain. So Young’s modulus is higher for steel than rubber. Hence steel is more elastic than rubber.
APPEARS IN
RELATED QUESTIONS
Consider two wires X and Y. The radius of wire X is 3 times the radius of Y. If they are stretched by the same load then the stress on Y is ___________.
For a given material, the rigidity modulus is `(1/3)^"rd"` of Young’s modulus. Its Poisson’s ratio is
Two wires are made of the same material and have the same volume. The area of cross-sections of the first and the second wires are A and 2A respectively. If the length of the first wire is increased by ∆l on applying a force F, how much force is needed to stretch the second wire by the same amount?
Which of the following is not a scalar?
Define strain.
A spring balance shows wrong readings after using it for a long time. Why?
What is the effect of temperature on elasticity?
Write down the expression for the elastic potential energy of a stretched wire.
Explain the different types of modulus of elasticity.
Derive an expression for the elastic energy stored per unit volume of a wire.
