Which of the following group of forces can produce equilibrium?

Related Mcqs:

1. The resultant of two forces of equal magnitudes is also equal to the magnitude of the forces. The angle between the two forces is________________?

   A. 30°
   B. 60°
   C. 90°
   D. 120°

2. Which of the following pair of forces can produce a resultant of 8N?

   A. 2N & 5N
   B. 20N & 2N
   C. 3N & 6N
   D. 4N & 1N

   Submitted by: Zahid Jagirani

3. By how many times are the Electrostatic forces stronger than the Gravitational Forces for a fixed distance?

   A. 10²
   B. 10³⁶
   C. 10¹²
   D. None of these

   Submitted by: Nayab Idrees

4. Three coplanar forces acting on a body keep it in equilibrium. They should therefore be_______________?

   A. Concurrent
   B. Non-concurrent
   C. Parallel
   D. Non-parallel

5. Nuclear forces exist between ___________________?

   A. Proton-proton
   B. Proton-neutron
   C. Neutron-neutron
   D. All of the above

6. 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)

7. When the coil of the galvanometer is in equilibrium then the deflecting couple is____________________?

   A. zero
   B. equal to the restoring couple
   C. greater than the restoring couple
   D. smaller than the restoring couple

8. A body will be in complete equilibrium when it is satisfying______________?

   A. 1st condition of equilibrium
   B. 2nd condition of equilibrium
   C. Both Ist and 2nd condition of equilibrium
   D. Impossible

9. Which one is not a type of dynamic equilibrium ?

   A. Rotational equilibrium
   B. Translational equilibrium
   C. Static equilibrium
   D. Both A and C are corret answer

10. Two coherent sources of light produce interference (destructive) when the phase difference between them is _________?

    A. π
    B. 2π
    C. π/2
    D. π/4

    Submitted by: Rizwan Ayub Saadi