MCQOPTIONS
Saved Bookmarks
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. |
_____ is same on every point on a rotating body. |
| A. | Linear velocity |
| B. | Linear momentum |
| C. | Angular torque |
| D. | Angular velocity |
| Answer» E. | |
| 2. |
____ is used in periscope. |
| A. | Plane mirror |
| B. | Prism |
| C. | Concave lens |
| D. | Convex lens |
| Answer» B. Prism | |
| 3. |
______ is the perpendicular distance between point of application of force and axis of rotation. |
| A. | Moment arm |
| B. | Moment of Inertia |
| C. | Altitude |
| D. | Base |
| Answer» B. Moment of Inertia | |
| 4. |
___ is not related to gases. |
| A. | Boyle's Law |
| B. | Joule's Law |
| C. | Avogadro's Law |
| D. | Charle's Law |
| Answer» C. Avogadro's Law | |
| 5. |
_____ mirror is used in the headlights of cars. |
| A. | Semi-circular |
| B. | Conical |
| C. | Convex |
| D. | Concave |
| Answer» E. | |
| 6. |
____ is not a type of heat transfer._x005F_x000D_ |
| A. | Diffusion |
| B. | Reflection |
| C. | Convection |
| D. | Radiation |
| Answer» C. Convection | |
| 7. |
_________ is a natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, especially near the northern or southern magnetic pole. |
| A. | Acaulis |
| B. | Alatus |
| C. | Albopictus |
| D. | Aurora |
| Answer» E. | |
| 8. |
___ is a unit of length, roughly the distance from Earth to the Sun. |
| A. | Light years |
| B. | Astronomical unit |
| C. | Kelvin |
| D. | Joule |
| Answer» C. Kelvin | |
| 9. |
_________________ through a plane surface is the product of the magnetic flux density normal to the surface and the area of the surface. |
| A. | Magnetic susceptibility |
| B. | Magnetic resonance |
| C. | Magnetic flux |
| D. | Magnetic pulse |
| Answer» D. Magnetic pulse | |
| 10. |
____ is not an example of refraction of light._x005F_x000D_ |
| A. | Twinkling effect of stars |
| B. | Mirages |
| C. | Lateral inversion |
| D. | Bending of light while passing through a medium |
| Answer» D. Bending of light while passing through a medium | |
| 11. |
_____________________ states that the total current entering a junction is equal to the total current leaving the junction. |
| A. | Lenz's Law |
| B. | Hooke's Law |
| C. | Ohm's Law |
| D. | Kirchhoff's First Law |
| Answer» E. | |
| 12. |
___________________states that the induced e.m.f. is directly proportional to the rate of change of magnetic flux linkage or rate of cutting of magnetic fluxlinkage. |
| A. | Lenz's Law |
| B. | Hooke's Law |
| C. | Ohm's Law |
| D. | Faraday's Law |
| Answer» E. | |
| 13. |
_______________ states that the ratio of the potential difference across a conductor to the current flowing through it, is a constant, provided that its physical conditions, such as temperature, remain constant. |
| A. | Lenz's Law |
| B. | Hooke's Law |
| C. | Ohm's Law |
| D. | The coulomb's law |
| Answer» D. The coulomb's law | |
| 14. |
______________ of a wave is the rate of transfer of energy per unit area perpendicular to the direction of travel of the wave. |
| A. | Interference |
| B. | Rectification |
| C. | Intensity |
| D. | Diffraction |
| Answer» D. Diffraction | |
| 15. |
________________ refers to the superposing of two or more coherent waves to produce regions of maxima and minima in space, according to the principle of superposition. |
| A. | Interference |
| B. | Rectification |
| C. | Intensity |
| D. | Diffraction |
| Answer» B. Rectification | |
| 16. |
____________ is defined as the rate of doing work._x005F_x000D_ |
| A. | Energy |
| B. | Force |
| C. | Power |
| D. | momentum |
| Answer» D. momentum | |
| 17. |
___________________ is defined as the force acting per unit current per unit length on a wire placed at right angles to the magnetic field. |
| A. | Magnetic susceptibility |
| B. | Magnetic flux density |
| C. | Magnetic flux |
| D. | Magnetic pulse |
| Answer» C. Magnetic flux | |
| 18. |
_________________ is a measure of the moisture in air. |
| A. | Density |
| B. | Viscosity |
| C. | Impurity |
| D. | Humidity |
| Answer» E. | |
| 19. |
____________________is a measure of the actual amount of water vapour in a particular sample of air: measured as a partial pressure. |
| A. | Specific Humidity |
| B. | Absolute Humidity |
| C. | Relative Humidity |
| D. | Dew Point |
| Answer» C. Relative Humidity | |
| 20. |
Working of safety fuses depends upon_x005F_x000D_ 1. magnetic effect of the current_x005F_x000D_ 2. chemical effect of the current_x005F_x000D_ 3. magnitude of the current_x005F_x000D_ 4. heating effect of the current_x005F_x000D_ Select the correct answer using the code given below._x005F_x000D_ |
| A. | 1, 2, 3 and 4 |
| B. | 1, 2 and 3 only |
| C. | 3 and 4 only |
| D. | 4 only |
| Answer» D. 4 only | |
| 21. |
Zero degree centigrade is equal to what degree Fahrenheit? |
| A. | 100 deg F |
| B. | 30 deg F |
| C. | 34 deg F |
| D. | 32 deg F |
| Answer» E. | |
| 22. |
Work done by an object on application of a force would be zero if the displacement of the object is:_x005F_x000D_ |
| A. | negative |
| B. | Positive |
| C. | neutral |
| D. | Zero |
| Answer» E. | |
| 23. |
With a concave mirror (centre of curvature), when an object is placed at the Focus (F), which of the following applies for the image? |
| A. | Real, inverted image of the same size at C |
| B. | Real, inverted, diminished image between C and F |
| C. | Real, inverted, highly enlarged image at infinity |
| D. | Real, inverted, highly diminished image at F |
| Answer» D. Real, inverted, highly diminished image at F | |
| 24. |
With reference to gravity, what is G called? |
| A. | Gravitational constant |
| B. | Gravitational attraction |
| C. | Gravitational force |
| D. | Acceleration due to gravity |
| Answer» B. Gravitational attraction | |
| 25. |
Work done by a passenger standing on a platform holding a suitcase weighing 10kg is |
| A. | 980 J |
| B. | 98 J |
| C. | 0 J |
| D. | 100 J |
| Answer» D. 100 J | |
| 26. |
Women have shrill voice because of _______. |
| A. | Low frequency |
| B. | High frequency |
| C. | Shrill vocals |
| D. | Strong epiglottis |
| Answer» C. Shrill vocals | |
| 27. |
Wind and solar energy are examples of |
| A. | Non renewable |
| B. | Renewable |
| C. | Unsustainable |
| D. | Limited |
| Answer» C. Unsustainable | |
| 28. |
Why the Earth is having its own atmosphere ? |
| A. | Winds |
| B. | Clouds |
| C. | Gravity |
| D. | Rotation of the Earth |
| Answer» D. Rotation of the Earth | |
| 29. |
Why is weightlessness experienced while orbiting the earth in space ships ? |
| A. | Inertia |
| B. | Acceleration |
| C. | Zero gravity |
| D. | Orbital motion |
| Answer» D. Orbital motion | |
| 30. |
Why metals conduct electricity? |
| A. | Because of low melting point |
| B. | Because of high tensile strength |
| C. | Because of free electrons |
| D. | Because of high atomic density |
| Answer» D. Because of high atomic density | |
| 31. |
Why does'nt the hydrogen atom emit X-rays? |
| A. | It is very small in size |
| B. | It has only one electron |
| C. | Its energy levels are very close to each other |
| D. | it is highly electropositive |
| Answer» D. it is highly electropositive | |
| 32. |
Why does the sea appear blue in colour? |
| A. | Reflection of the sun light from water surface |
| B. | Interference of the sun light from water surface |
| C. | Scattering of the sunlight by water molecules |
| D. | refraction of the sun light |
| Answer» D. refraction of the sun light | |
| 33. |
Why does water tank appear shallower when viewed from the top? |
| A. | Due to reflection |
| B. | Due to refraction |
| C. | Due to diffraction |
| D. | Due to total internal reflection |
| Answer» C. Due to diffraction | |
| 34. |
Why does a sprinter keep running even after crossing the finishing line? |
| A. | He wants to make sure that he crosses the line |
| B. | Inertia of rest takes some time to make him stop |
| C. | Inertia of motion keeps him moving |
| D. | Friction between his shoes and the ground causes him to move beyond the line |
| Answer» D. Friction between his shoes and the ground causes him to move beyond the line | |
| 35. |
Why does a piece of cloth, which appears green in sunlight, appear black when it is viewed under red light? |
| A. | The cloth completely absorbs red colour wavelength |
| B. | It is due to refraction |
| C. | It is the effect of scattering of light |
| D. | It is due to parallax error |
| Answer» B. It is due to refraction | |
| 36. |
Why does a piece of cloth, which appears green in sunlight, appear black when it is viewed under red light?_x005F_x000D_ |
| A. | The cloth completely absorbs red colour wavelength |
| B. | It is due to refraction |
| C. | It is the effect of scattering of light |
| D. | It is due to Parallax error |
| Answer» B. It is due to refraction | |
| 37. |
Why does a fountain pen leak in aeroplane flying at a height? |
| A. | Because of reduced viscosity of the ink in the pen |
| B. | Because of increased viscosity of the ink in the pen |
| C. | Because of higher atmospheric pressure outside the pen |
| D. | Because of lower atmospheric pressure outside the pen |
| Answer» E. | |
| 38. |
Why boiling point of water decreases at high altitudes? |
| A. | Because of high temperature |
| B. | Because of low atmospheric pressure |
| C. | Because of low temperature |
| D. | Because of high atmospheric pressure |
| Answer» C. Because of low temperature | |
| 39. |
Why does a cannon recoil after firing ? |
| A. | Conservation of energy |
| B. | Backward thrust of gases produced |
| C. | Newton's third law of motion |
| D. | Newton's first law of motion |
| Answer» D. Newton's first law of motion | |
| 40. |
Who proposed Continental drift theory? |
| A. | Alfred Wegener |
| B. | Alfred Worwick |
| C. | Alfred Hanks |
| D. | Alfred Mane |
| Answer» B. Alfred Worwick | |
| 41. |
Who first determined the value of G (gravitational constant)? |
| A. | Lord Cavendish |
| B. | R.R Heyl |
| C. | Boyle |
| D. | Poynting |
| Answer» B. R.R Heyl | |
| 42. |
While watching 3D movies at the theater, we have to wear special glasses because? |
| A. | The glasses allow our left and right eyes to see different images |
| B. | 3-D movies use special colors which cannot be sensed by the human eye |
| C. | 3-D movies are brighter than ordinary movies and can hurt our eyes if seen directly |
| D. | The glasses allow both the eyes to see similar images |
| Answer» B. 3-D movies use special colors which cannot be sensed by the human eye | |
| 43. |
While releasing the arrow from a stretched bow, the PE of the bow is converted into? |
| A. | chemical energy |
| B. | kinetic energy |
| C. | sound energy |
| D. | heat energy |
| Answer» C. sound energy | |
| 44. |
Who does not the kinetic energy of an object increase with? |
| A. | Friction |
| B. | Time |
| C. | Mass |
| D. | Speed |
| Answer» E. | |
| 45. |
Who discovered theory of relativity? |
| A. | Isaac Newton |
| B. | Albert Einstein |
| C. | Niel Bohr |
| D. | Michael Faraday |
| Answer» C. Niel Bohr | |
| 46. |
Which waves cannot be transmitted through vacuum? |
| A. | Electromagnetic |
| B. | Light |
| C. | Sound |
| D. | Heat |
| Answer» D. Heat | |
| 47. |
Which vitamin is also called as H vitamin? |
| A. | Vitamin B7 |
| B. | Vitamin B12 |
| C. | Vitamin B3 |
| D. | Vitamin B5 |
| Answer» B. Vitamin B12 | |
| 48. |
Which type of radiation has the lowest penetrating ability? |
| A. | Alpha |
| B. | Beta |
| C. | Gamma |
| D. | All of the above |
| Answer» B. Beta | |
| 49. |
Which type of fault is under compression?_x005F_x000D_ Â _x005F_x000D_ _x005F_x000D_ |
| A. | shear |
| B. | normal |
| C. | reverse |
| D. | strike-slip |
| Answer» D. strike-slip | |
| 50. |
Which type of electromagnetic radiation have wavelength in the range of 10–11 – 10–8 metre?_x005F_x000D_ |
| A. | Radio waves |
| B. | Ultraviolet waves |
| C. | Visible light |
| D. | X-rays |
| Answer» E. | |