MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Distance covered by a freely falling body in 2 seconds will be__________________? |
| A. | 4.9 m |
| B. | 19.6 m |
| C. | 39.2 m |
| D. | 44.1 m |
| Answer» C. 39.2 m | |
| 2. |
Displacement of the body in S.H.M is equal to amplitude when the body is at_______________? |
| A. | Mean position |
| B. | Elsewhere |
| C. | Extreme position |
| D. | None |
| Answer» D. None | |
| 3. |
Dioptre power of an concave lens of 10 cm focal length is_______________? |
| A. | 10 dioptre |
| B. | 10 dioptre |
| C. | 1 / 10 dioptre |
| D. | 1 / 10 dioptre |
| Answer» C. 1 / 10 dioptre | |
| 4. |
Dimensional analysis is helpful for__________________? |
| A. | Deriving a possible formula |
| B. | Checking the homogeneity of a physical equation |
| C. | Verification of laws |
| D. | Only A and B are correct |
| Answer» E. | |
| 5. |
Dimension of pressure is__________________? |
| A. | MLT |
| B. | ML-1T-1 |
| C. | ML-1T-2 |
| D. | ML-2T-2 |
| Answer» D. ML-2T-2 | |
| 6. |
Diffraction fringes are____________________? |
| A. | equally spaced |
| B. | distance between them increases |
| C. | distance between then decreases |
| D. | they are adjacent with no space in between |
| Answer» D. they are adjacent with no space in between | |
| 7. |
Diffraction effect is____________________? |
| A. | more for a round edge |
| B. | less for a round edge |
| C. | more for a sharp edge |
| D. | less for a sharp edge |
| Answer» D. less for a sharp edge | |
| 8. |
Depletion region of a junction is formed_____________? |
| A. | during the manufacturing process |
| B. | under forward bias |
| C. | under reverse bias |
| D. | when temperature varies |
| Answer» B. under forward bias | |
| 9. |
Davison Germer experiment indicates__________________? |
| A. | Interference |
| B. | Polarization |
| C. | Electron diffraction |
| D. | Refraction |
| Answer» D. Refraction | |
| 10. |
Crystals of a material can behave as_________________? |
| A. | Convex lens |
| B. | Interferometer |
| C. | Diffraction grating |
| D. | Concave |
| Answer» D. Concave | |
| 11. |
Cosθi^ + Sinθj^ is a_________________? |
| A. | Vector |
| B. | Position Vector |
| C. | Vector in the direction at angle θ with an x-axis |
| D. | The unit vector in the direction at angle θ with an x-axis |
| Answer» E. | |
| 12. |
Concentration of red cells in blood is about______________? |
| A. | 25% |
| B. | 40% |
| C. | 50% |
| D. | 75% |
| Answer» D. 75% | |
| 13. |
Compton effect proves the________________? |
| A. | Photon theory of light |
| B. | Dual nature of light |
| C. | Wave nature of light |
| D. | Uncertain nature of light |
| Answer» B. Dual nature of light | |
| 14. |
Coil of a galvanometer is suspended in a radial magnetic field so that the deflecting torque on the coil is always___________________? |
| A. | BINA cosa |
| B. | BINA sina |
| C. | BINA tana |
| D. | BINA |
| Answer» E. | |
| 15. |
Coercive force is the force which opposes ____________________? |
| A. | Demagnetization |
| B. | Breakage |
| C. | Extension |
| D. | Surface cracking |
| Answer» B. Breakage | |
| 16. |
Coefficient of viscosity of honey is greater than______________? |
| A. | Milk |
| B. | Water |
| C. | Charcoal |
| D. | Water |
| Answer» E. | |
| 17. |
Circuit which gives continuously varying potential is called _______________________? |
| A. | complex network |
| B. | wheat stone bridge |
| C. | potential divider |
| D. | all of above |
| Answer» D. all of above | |
| 18. |
Choose the correct statement. In the case of AC circuit ohms law holds for_______________? |
| A. | Peak values of voltage and current |
| B. | Effective values of voltage and current |
| C. | Instantaneous values of voltage and current |
| D. | All of the above |
| Answer» E. | |
| 19. |
CFC is used in _________________? |
| A. | Refrigeration |
| B. | Aerosol spray |
| C. | Plastic foam industry |
| D. | All of above |
| Answer» E. | |
| 20. |
Centripetal force performs_______________? |
| A. | Maximum work |
| B. | Minimum work |
| C. | Negative work |
| D. | No work |
| Answer» E. | |
| 21. |
Central spot of Newtons rings __________________? |
| A. | bright |
| B. | dark for large wavelength |
| C. | dark |
| D. | bright for large wavelength |
| Answer» B. dark for large wavelength | |
| 22. |
________________ cells converts solar energy into electrical energy? |
| A. | rotory |
| B. | photovoltaic |
| C. | galvanic |
| D. | non of these |
| Answer» C. galvanic | |
| 23. |
Bracket series is obtained when all transition of electron terminate on_______________? |
| A. | 4th orbit |
| B. | 5th orbit |
| C. | 3rd orbit |
| D. | 2nd orbit |
| Answer» B. 5th orbit | |
| 24. |
Boyles law helds for ideal gases in________________? |
| A. | isochoric processes |
| B. | isobaric processes |
| C. | isothermal processes |
| D. | adiabatic processes |
| Answer» D. adiabatic processes | |
| 25. |
Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as_______________? |
| A. | K = RNa |
| B. | K = R/Na |
| C. | K = Na/Ra |
| D. | K = nRNa |
| Answer» C. K = Na/Ra | |
| 26. |
Blood vessels are______________? |
| A. | Rigid |
| B. | Not rigid |
| C. | Of glass |
| D. | Of rubber |
| Answer» C. Of glass | |
| 27. |
Biomass can be converted into fuels by____________________? |
| A. | direct combustion |
| B. | fermentation |
| C. | both A and B |
| D. | none of these |
| Answer» D. none of these | |
| 28. |
Beta particles ionize an atom_________________? |
| A. | Due to the electrostatic force of attraction |
| B. | Due to the electrostatic force of repulsion |
| C. | Due to a direct collision |
| D. | Due to the gravitational force |
| Answer» C. Due to a direct collision | |
| 29. |
Bernoulli’s equation is obtained by applying the law of conservation of ________________? |
| A. | Mass |
| B. | Energy |
| C. | Momentum |
| D. | Fluid |
| Answer» C. Momentum | |
| 30. |
Bernoulli’s equation is applicable for_________________? |
| A. | Laminar flow |
| B. | Turbulent flow |
| C. | Both laminar and turbulent flow |
| D. | None of these |
| Answer» D. None of these | |
| 31. |
Beats are the results of____________________? |
| A. | diffraction of sound waves |
| B. | constructive and destructive interference |
| C. | polarization |
| D. | destructive interference |
| Answer» C. polarization | |
| 32. |
Average translational kinetic energy per molecule of an ideal gas is given by_____________? |
| A. | 3NaT/2R |
| B. | 2NaT/3 |
| C. | 3RT/2Na |
| D. | 3Na/2RT |
| Answer» D. 3Na/2RT | |
| 33. |
Average energy required to remove one nucleon from the nucleus is called__________________? |
| A. | Binding energy per nucleon |
| B. | Energy of decay |
| C. | Destruction energy |
| D. | All of above |
| Answer» B. Energy of decay | |
| 34. |
Average distance covered by alpha particles in the air before its ionizing power ceases is called its_________________? |
| A. | Trajectory |
| B. | Range |
| C. | Firing level |
| D. | Limit |
| Answer» C. Firing level | |
| 35. |
At which angle the range of the projectile is maximum____________________? |
| A. | 45 |
| B. | 60 |
| C. | 30 |
| D. | none |
| Answer» B. 60 | |
| 36. |
At what temperature is the Fahrenheit scale reading equal to twice that of the Celsius scale? |
| A. | 460°C |
| B. | 280°C |
| C. | 360°C |
| D. | 160°C |
| Answer» E. | |
| 37. |
At resonance the value of the power factor in an L-C-R series circuit is_______________? |
| A. | Zero |
| B. | 2 |
| C. | 1 |
| D. | Not definite |
| Answer» D. Not definite | |
| 38. |
At Murree Hills (Assume the value of g changes). If we use a simple pendulum as time standard then one-second duration will_____________? |
| A. | Increase |
| B. | Decrease |
| C. | Remains the same |
| D. | Is zero |
| Answer» B. Decrease | |
| 39. |
At constant temperature the graph between V and 1/P is_____________? |
| A. | Hyperbola |
| B. | Parabola |
| C. | A curve of any shape |
| D. | A straight lime |
| Answer» E. | |
| 40. |
As the temperature of black body is raised the wavelength corresponding to maximum intensity________________? |
| A. | shifts towards longer wavelength |
| B. | shifts towards shorter wavelength |
| C. | remain the same |
| D. | shifts towards longer as well as shorter wavelengths |
| Answer» C. remain the same | |
| 41. |
Area under velocity time graph represent_____________________? |
| A. | force |
| B. | displacement |
| C. | distance |
| D. | acceleration |
| Answer» C. distance | |
| 42. |
appearance of colour in thin films is due to ____________________? |
| A. | diffraction |
| B. | dispersion |
| C. | interference |
| D. | polarization |
| Answer» D. polarization | |
| 43. |
Any alteration produced in shapes length or volume when a body is subjected to some external force is called____________________? |
| A. | Stiffness |
| B. | Toughness |
| C. | Extension |
| D. | Deformation |
| Answer» E. | |
| 44. |
Antimatter consists of ______________? |
| A. | Antiproton |
| B. | Antineutron |
| C. | Positron |
| D. | All of above |
| Answer» E. | |
| 45. |
An OP-AMPs can amplify_______________? |
| A. | D.C. |
| B. | A.C. |
| C. | Both A.C. & D.C. |
| D. | None of the above |
| Answer» C. Both A.C. & D.C. | |
| 46. |
An OP-AMP comparator is a circuit that compares the signal voltage on one of its inputs with a ______________? |
| A. | Non-inverting voltage at output |
| B. | Reference voltage on the other |
| C. | Virtual input |
| D. | Output |
| Answer» C. Virtual input | |
| 47. |
An observer shoots parallel to a meter stick at very high (relativistic) speed and finds that the length of meter stick is________________? |
| A. | greater than one meter |
| B. | less than one meter |
| C. | one meter |
| D. | a foolish question |
| Answer» C. one meter | |
| 48. |
An instrument which can measure potential without drawing any current is_____________________? |
| A. | voltmeter |
| B. | galvanometer |
| C. | cathode ray oscilloscope (CRO) |
| D. | ammeter |
| Answer» D. ammeter | |
| 49. |
An inductor may store energy in ________________? |
| A. | Its electric field |
| B. | Its coils |
| C. | Its magnetic field |
| D. | Both electric and magnetic fields |
| Answer» D. Both electric and magnetic fields | |
| 50. |
An inductive coil has a resistance of 100Ω. When an AC signal of frequency 1000Hz is fed to the coil the applied voltage leads the current by 45Ω. What is the inductance of the coil ? |
| A. | 10mH |
| B. | 12mH |
| C. | 16mH |
| D. | 20mH |
| Answer» D. 20mH | |