IIT JEE Questions And Answers :: Elasticity: part2



IIT JEE : Elasticity QUESTIONS AND ANSWERS :: part2 : 1 to 5

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :

1.You are given three wires A, B and C, of the same length and cross-section. They are each stretched by applying the same force to the ends. The wire A is stretched least and comes back to its original length when the stretching force is removed. The wire B is stretched more than A and also comes back to its original length when the stretching force is removed. The wire C is stretched most and remains stretched even when stretching force is removed. The greatest Young s modulus of elasticity is possessed by the material of wire

A
B
C
Data is not sufficient

2.The ratio of the adiabatic to isothermal elasticities of a triatomic gas is

3/4
4/3
1
5/3

3.The length of a wire is increased by 1 mm on the application of given load. In a wire of the same material, but of length and radius twice that of the first, on the application of the same load, extension is

0.25 mm
0.5 mm
2 mm
4 mm

4.Two wires of the same length and same material but radii in the ratio of 1 : 2 are stretched by unequal forces to produce equal elongation. The ratio of the two forces is

1 : 1
1 : 2
1 : 3
1 : 4

5.The dimensions of four wire of the same material are given below. In which wire the increase in length will be maximum ?

Length 100 cm, Diameter 1 mm
Length 200 cm, Diameter 2 mm
Length 300 cm, Diameter 3 mm
Length 50 cm, Diameter 0.5 mm.

More Elasticity QUESTIONS AND ANSWERS available in next pages

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