Any alteration produced in shapes length or volume when a body is subjected to some external force is called____________________?

Related Mcqs:

1. 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...

2. 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...

3. A convex lens of focal length f1 and a concave lens of focal length f2 are placed in contact. The focal length of the combination is_____________?

   A. f2 + f1 B. f2 – f1 C. f1f2/f2+f1 D. f1f2/f1-f2...

4. Magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called____________________?

   A. magnetic flux B. magnetic field intensity C. magnetic induction D. self inductance...

5. A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m while applying the force and the ball goes up to 2 in height further, find the magnitude of the force. Consider g = 10m/s 2

   A. 22N B. 16N C. 20N D. 4N Submitted by: Huzaifa Naseer...

6. The centripetal acceleration produced in a rotating body is commonly due to change on_________of body?

   A. magnitude B. direction  C. both D. None of these Submitted by: Bareera Mahmood...

7. When a force is parallel to the direction of motion of the body, then work done on the body is_____________________?

   A. zero B. minimum C. infinity D. maximum...

8. A wire obeys Hooks law is of length 11 when it is in equilibrium under a tension F1. Its length becomes 12 when the tension is increased to F2. The energy stored in the wire during this process is____________________?

   A. (F1+F2) (121+122) B. (F1+F2) (122-112) C. (F1+F2) (12-11) D. (F1+F2) (12-11)...

9. 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...

10. 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...