EASY
JEE Main
IMPORTANT
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Assertion: Bulk modulus of an incompressible fluid is infinite.
Reason: Density of incompressible fluid remains constant.
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Important Questions on Elasticity
EASY
JEE Main
IMPORTANT
Assertion: If value of Young's modulus of elasticity of a material is less, then it means material is ductile.
Reason: If a material is easily stretchable, then its value of Young's modulus of elasticity should be less.
EASY
JEE Main
IMPORTANT
Assertion: Modulus of elasticity does depend upon the dimensions of material.
Reason: Modulus of elasticity is a material property.
EASY
JEE Main
IMPORTANT
Assertion: Up to the elastic limit, strain stress.
Reason: Up to the elastic limit material returns to its original shape and size, when the external force is removed.
EASY
JEE Main
IMPORTANT
One end of a horizontal thick copper wire of length and radius is welded to an end of another horizontal thin copper wire of length and radius . When the arrangement is stretched by applying forces at two ends, the ratio of the elongation in the thin wire to that in the thick wire is
MEDIUM
JEE Main
IMPORTANT
The pressure that has to be applied to the ends of a steel wire of length to keep its length constant when its temperature is raised by is (For steel, Young's modulus is and coefficient of thermal expansion is )
EASY
JEE Main
IMPORTANT
The length of the wire is increased by by applying a load of . What is the linear strain produced in the wire?
EASY
JEE Main
IMPORTANT
If in a wire of Young's modulus , longitudinal strain is produced, then the value of potential energy stored in its unit volume will be
MEDIUM
JEE Main
IMPORTANT
The average depth of Indian Ocean is about . The fractional compression, of water at the bottom of the ocean (given that the Bulk modulus of the water and ) is
