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Common Forces in Mechanics, Class 11 Physics NCERT Solutions

1. There will be total 20 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. A train is moving along a horizontal track. A pendulum suspended from the roof of the train makes an angle of 5° with the vertical. The acceleration of the train is
 
 
 
 

Question 1 of 20

2. A body of weight 100 N is suspended with the help of strings as shown in figure. The tensions T1 and T2 will be
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Question 2 of 20

3. For a body along the inclined plane, the normal reaction acts
 
 
 
 

Question 3 of 20

4. Two forces F1 and F2 are acting on a particle. The particle will remain at rest if two forces are
 
 
 
 

Question 4 of 20

5. If no resultant force acts on a body then the body will be in
 
 
 
 

Question 5 of 20

6. A body is at rest though forces act on it. Then
 
 
 
 

Question 6 of 20

7. In mechanics, if the net external force on the particle is zero, then the particle is said to be in state of
 
 
 
 

Question 7 of 20

8. A book is lying on the table. What is the angle between the action of the book on the table and reaction of table on the book?
 
 
 
 

Question 8 of 20

9. A mass of 6 kg is suspended by a rope of length 2 m from a ceiling. A force of 50 N in the horizontal direction is applied at the mid-point of the rope, as shown. What is the angle the rope makes with the vertical in equilibrium?
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Question 9 of 20

10. Which of the conditions shows that the particles are in equilibrium state for two forces F1 and F2 acting on the body?
 
 
 
 

Question 10 of 20

11. Which of the following forces is not considered as a contact force in Mechanics?
 
 
 
 

Question 11 of 20

12. Weight and normal reaction forces
 
 
 
 

Question 12 of 20

13. The contact forces of mechanics are fundamentally derived from
 
 
 
 

Question 13 of 20

14. The minimum angle that an inclined plane makes with the horizontal when a body placed on it just begins to slide down is called
 
 
 
 

Question 14 of 20

15. A body in equilibrium:
 
 
 
 

Question 15 of 20

16. Spring force is a restoring force.
 
 
 
 

Question 16 of 20

17. The forces F1, F2, and F3 are acting on a particle of mass m, such that F2 and F3 are mutually perpendicular and under the effect of F1, F2, and F3 , the particle remains stationary. What will be the acceleration of the particle, if the force F1 is removed?
Common Forces in Mechanics Multiple Choice Questions for CBSE Class 11 Physics Topperlearning
 
 
 
 

Question 17 of 20

18. Tension on an almost massless rope being pulled by two boys, one small and one big, will be
 
 
 
 

Question 18 of 20

19. Which of the following cannot be regarded as yet another kind of force?
 
 
 
 

Question 19 of 20

20. The component of contact force normal to the surfaces in contact is called
 
 
 
 

Question 20 of 20