Important Physics MCQs – Solved

By: Prof. Dr. Fazal Rehman | Last updated: May 20, 2025

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1. : Precise measurement is the one which has,



2. : Number of significant figures in 0.0010 are,



3. : Which of the following is a supplementary unit?



4. : A unit vector is obtained by?



5. : The angle between two vectors A and B can be found by



6. : The irregular and unsteady flow of fluid are known as?



7. : The frictional force is present in



8. : Drag force depends upon, according to Stokes’ law?



9. : The force that appears as a result of interaction between two moving charges is known as



10. : When a charge passes through a region undeflected, then F(e) = F(m) _______



11. : The direction of vectors L*B is



12. : The electric current produced magnetic field, this fact is discovered by:



13. : Parallel lines carrying current in the same direction will:



14. : Cathode ray oscilloscope works by:



15. : What is pressure in the narrow pipe if steam lines are close together?



16. : The power of a concave lens is



17. : A convex lens gives a virtual image only when the object lies



18. : In going from a denser to rarer medium a ray of light is



19. : Light signals pass through multimode graded index fiber due to



20. : A lens which converges a beam of parallel rays to a point is called



21. : It is observed that an emf is set up in a conductor when it moves across a _____



22. : Induced emf is a phenomenon which is due to _______



23. : What is the amplitude at the resonance of a vibrating body situated in the air?



24. : What is the highest temperature at which the liquefaction of gases takes place?



25. : Gas pressure is defined as



26. : At constant pressure, the graph between V and T is



27. : What happens when solid materials are heated, they



28. : When a metallic rod is heated, its change in length is



29. : Bimetallic strips are used in thermostats



30. : Ice becomes slippery when a man walks on it because



31. : Thermodynamics is the study of the relationship between



32. : Which of the following is a closed system?



33. : What is the angular momentum of a body under a central force?



34. : Moment of inertia depends upon



35. : The product of the mass ‘m’ of the rotating body and the square of the radius of gyration is called?



36. : Which of the following is also called as



37. : Artificial gravity is provided to the spaceship by



38. : For what purpose, geostationary satellites are used?



39. : With rising temperature viscosity of gases



40. : Atmospheric pressure effect due to



41. : The drag force of a fluid depends upon



42. : Which of the following is more viscous?



43. : The smooth and steady flow of fluid is known as



44. : The streamlines for an ideal fluid are?



45. : Archimedes principle deals with



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