The dimension of elastic modulus is ___________________ ?

Related Mcqs:

1. When a force is applied at one end of an elastic wire it produces at strain ∝ in the wire. If y is the youngs modulus of the material of the wire the amount of energy stored per unit volume of the wire is given by_________________?

   A. Y∝
   B. 2Y∝
   C. Y∝/2
   D. Y∝2

2. A certain stress applied to an elastic material produces a certain strain in it. If the elastic limit is not exceeded the energy gained per unit volume of the material is given by_________________?

   A. Stress/strain
   B. (stress/strain)
   C. Stress x strain
   D. (Stress / strain)

3. What is the SI unit of modulus of elasticity of substance ?

   A. Nm-2
   B. Jm-2
   C. Nm-1
   D. Being a number it has no unit.

4. The ration stress to strain in youngs modulus of the material then tension is__________________?

   A. Directly proportional to extension
   B. Directly proportional to strain
   C. Directly proportional to square of amplitude
   D. Inversely proportional to extension

5. A rubber cord of cross-sectional area 2cm2 has a length of 1m. When a tensile force of 10N is applied the length of the cord increases by 1cm. What is the youngs modulus of rubber ?

   A. 2×108 Nm-2
   B. 5×106 Nm-2
   C. 0.5×10-6 Nm-2
   D. 0.2×10-6Nm-2

6. A uniform steel wire of length 4m and area of cross-section 3×10-6m2 is extended by 1mm by the application of a force. If the youngs modulus of steel is 2×1011 Nm-2 the energy stored in the wire is___________________?

   A. 0.025J
   B. 0.50J
   C. 0.75J
   D. 0.100J

7. Young’s modulus is the property of __________?

   A. Gas only
   B. Liquid only
   C. Solid only
   D. All of the above

   Submitted by: Naveed Tahir

8. The collision between two bodies be elastic if bodies are_________________?

   A. solid and soft
   B. soft and elastic
   C. solid and hard
   D. hard and elastic

9. A wire of length L is stretched by a length E when a force F is applied at one end. If the elastic limit is not exceeded the amount of energy stored in the wire is_________________?

   A. FE
   B. (FE)
   C. FE2/L
   D. FE2

10. ML-1 T-2 is the dimension of_______________?

    A. Force
    B. Pressure
    C. Momentum
    D. Energy