MCQOPTIONS
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MCQOPTIONS
This section includes 106 Mcqs, each offering curated multiple-choice questions to sharpen your Geology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the law in which under the same conditions of temperature and pressure, equal volumes of all gas contain equal number of molecules |
| A. | Colioli effect |
| B. | Grahams law |
| C. | Pascal's law |
| D. | Avogadro's law |
| Answer» E. | |
| 2. |
Due to temperature variation along a conductor, potential variation occurs along it. This phenomenon is known as |
| A. | Thomson effect |
| B. | Joule effect |
| C. | Seebeck effect |
| D. | Peltier effect |
| Answer» B. Joule effect | |
| 3. |
The paramagnetic theory of magnetism applies to |
| A. | nickel |
| B. | mercury |
| C. | iron |
| D. | platinum |
| Answer» E. | |
| 4. |
The domain theory of magnetism applies to |
| A. | aluminium |
| B. | copper |
| C. | silver |
| D. | cobalt |
| Answer» E. | |
| 5. |
The unit of magnetic permeability is |
| A. | Henry/meter |
| B. | Henry |
| C. | Weber |
| D. | Weber/meter |
| Answer» B. Henry | |
| 6. |
The wave of theory of light is based on |
| A. | the laws of reflection |
| B. | the laws of refraction |
| C. | the inverse square law |
| D. | Huyghens' principle |
| Answer» E. | |
| 7. |
The wave theory of light can explain |
| A. | comptom effect |
| B. | photoelectric effect |
| C. | black body spectrum |
| D. | interference of light |
| Answer» E. | |
| 8. |
The alluminating powers of two sources are compared by |
| A. | a spectrometer |
| B. | a photometer |
| C. | a polarimeter |
| D. | a fluxmeter |
| Answer» C. a polarimeter | |
| 9. |
The refractive index of a transparent medium is maximum for |
| A. | red light |
| B. | violet light |
| C. | yellow light |
| D. | green light |
| Answer» C. yellow light | |
| 10. |
The lift of an aeroplane is caused by |
| A. | law of gravitation |
| B. | theorem of continuity |
| C. | Pascel's law |
| D. | Bernouli's theorem |
| Answer» E. | |
| 11. |
Which of the following characteristics of light remains unchanged when light travels from vaccum enters water |
| A. | speed |
| B. | amplitude |
| C. | frequency |
| D. | wavelength |
| Answer» D. wavelength | |
| 12. |
The velocity of falling rain drops attains a terminal value because of |
| A. | surface tension |
| B. | air current |
| C. | upward thrust due to air |
| D. | viscous forcce exerted by air |
| Answer» E. | |
| 13. |
In a Carnot engine when heat is taken from the source, its temperature |
| A. | remains constant |
| B. | decreases |
| C. | increases |
| D. | decreases and then remains constant |
| Answer» B. decreases | |
| 14. |
The moment of inertia of a body does not depend upon |
| A. | the mass of the body |
| B. | the mass distribution in the body |
| C. | the angular speed of the body |
| D. | the axis of rotation of the body |
| Answer» D. the axis of rotation of the body | |
| 15. |
A small piece of a substance is weakly attracted by a strong magnetic field. The substance is |
| A. | diamagnetic |
| B. | ferromagnetic |
| C. | paramagnetic |
| D. | non-magnetic |
| Answer» D. non-magnetic | |
| 16. |
In a nuclear reactor, cadmium rods used to |
| A. | absorb excess neutrons |
| B. | absorb the heat produced |
| C. | slow down fast neutrons |
| D. | prevent the fuel rods from coming in contact with one another |
| Answer» B. absorb the heat produced | |
| 17. |
1 amu is equivalent to |
| A. | 1 eV |
| B. | 931 eV |
| C. | 931 KeV |
| D. | 931 MeV |
| Answer» E. | |
| 18. |
The impurity atoms with which silicon should be doped to make p-type semiconductors are |
| A. | phosphorus |
| B. | antimony |
| C. | boron |
| D. | germanium |
| Answer» D. germanium | |
| 19. |
A metal-semiconductor junction diode is called __ |
| A. | Schottky diode |
| B. | Photo diode |
| C. | Tunnel diode |
| D. | P-N Juction diode |
| Answer» B. Photo diode | |
| 20. |
In a magnetic field, the direction of motion of a current carrying conductor is given by |
| A. | Maxwell's right hand rule |
| B. | Lenz's rule |
| C. | Flemings left hand rule |
| D. | Kirchoff's law |
| Answer» D. Kirchoff's law | |
| 21. |
Sound waves do not show the phenomenon of |
| A. | refraction |
| B. | interference |
| C. | diffraction |
| D. | polarisation |
| Answer» E. | |
| 22. |
Red light has a wavelength of 7000 A°. In "nm" it is |
| A. | 7 nm |
| B. | 0.07 nm |
| C. | 70 nm |
| D. | 700 nm |
| Answer» E. | |
| 23. |
In uniform circular motion, the linear velocity perpendicular to |
| A. | radius |
| B. | force |
| C. | radius vector |
| D. | momentum |
| Answer» D. momentum | |
| 24. |
Choose the correct answer : A thermodynamic state function is a quantity |
| A. | used to determine heat changes |
| B. | whose value is independent of path |
| C. | used to determine pressure-volume work |
| D. | whose value depends on temperature only |
| Answer» C. used to determine pressure-volume work | |
| 25. |
At constant pressure, the volume of a fixed mass of a gas is directly proportional to its absolute temperature. It is the statement of |
| A. | Boyle's Law |
| B. | Charle's Law |
| C. | Gay-Lussac's Law |
| D. | Avogadro's Law |
| Answer» C. Gay-Lussac's Law | |
| 26. |
Number of lattices in the orthorhombic system is |
| A. | 4 |
| B. | 5 |
| C. | 7 |
| D. | 8 |
| Answer» D. 8 | |
| 27. |
Atomic packing factor of body centred cubic structure (bcc) is |
| A. | 0.63 |
| B. | 0.68 |
| C. | 0.69 |
| D. | 0.73 |
| Answer» C. 0.69 | |
| 28. |
Which of the following features of a tunnel diode is its drawback |
| A. | Extremely high frequency response |
| B. | Very wide temperature range of operations |
| C. | Instability due to negative resistance |
| D. | Very low power consumptions |
| Answer» D. Very low power consumptions | |
| 29. |
Which of the following experiments analyzed the Fraunhofer lines of the solar spectrum |
| A. | Barkla's experiment on scattering of X-rays |
| B. | Lamb-Rutherford experiment |
| C. | Geiger and Marsdens experiment on scattering of alpha particles |
| D. | Bunsen and Kirchhoff's experiment |
| Answer» E. | |
| 30. |
Which of the following is preferred for accelerating electrons |
| A. | Betatron |
| B. | Cyclotron |
| C. | Synchrotron |
| D. | Van de Graft Generator |
| Answer» B. Cyclotron | |
| 31. |
Which of the following is not reversible |
| A. | Joule effect |
| B. | Peltier effect |
| C. | Seebeck effect |
| D. | Thomson effect |
| Answer» B. Peltier effect | |
| 32. |
If electric resistance is to be decreased, then the number of resistance should be connected in __ |
| A. | Series |
| B. | Parallel |
| C. | Mixed arrangement |
| D. | None of the above |
| Answer» C. Mixed arrangement | |
| 33. |
Flemings "Left hand Rule" is associated with the effect of |
| A. | Electric field on current |
| B. | Magnetic field on magnet |
| C. | Electric field on magnet |
| D. | Magnetic field on current |
| Answer» E. | |
| 34. |
Boyle's law relates to |
| A. | Kinetic Theory of Gases |
| B. | Viscosity of Liquids |
| C. | Elasticity of Solids |
| D. | Plasticity of Solids |
| Answer» B. Viscosity of Liquids | |
| 35. |
"God Particle" is |
| A. | Neutrino |
| B. | Higgs Boson |
| C. | Meson |
| D. | Positron |
| Answer» C. Meson | |
| 36. |
The number of waves per second in a sound is called __ of that sound |
| A. | Velocity |
| B. | Frequency |
| C. | Displacement |
| D. | Acceleration |
| Answer» C. Displacement | |
| 37. |
Heavy water is used in nuclear reactor to |
| A. | Slow down neutron |
| B. | Absorb neutron |
| C. | Increase temperature |
| D. | Increase speed of neutron |
| Answer» E. | |
| 38. |
The dimension of Planck constant equals to that of |
| A. | Energy |
| B. | Momentum |
| C. | Angular momentum |
| D. | Power |
| Answer» D. Power | |
| 39. |
Atomic hydrogen has a life period of |
| A. | One hour |
| B. | One day |
| C. | One minute |
| D. | A fraction of a second |
| Answer» E. | |
| 40. |
Who indirectly determined the mass of the electron by measuring the charge of the electron |
| A. | Thomson |
| B. | Millikan |
| C. | Rutherford |
| D. | Einstein |
| Answer» C. Rutherford | |
| 41. |
The frequency used in TV and radar system lies in |
| A. | VHF |
| B. | HF |
| C. | SHF |
| D. | UHF |
| Answer» E. | |
| 42. |
Kirchhoff's laws are applicable to |
| A. | D.C. circuits only |
| B. | A.C. circuits only |
| C. | D.C. and A.C. circuits both |
| D. | None of the above |
| Answer» D. None of the above | |
| 43. |
Rainbow is formed due to a combination of |
| A. | Refraction and Scattering |
| B. | Dispersion and total internal reflection |
| C. | Refraction and absorption |
| D. | Dispersion and focussing |
| Answer» C. Refraction and absorption | |
| 44. |
According to Rutherford's atomic model, the electrons inside an atom are |
| A. | Centralized |
| B. | Not Stationary |
| C. | Stationary |
| D. | None of these |
| Answer» C. Stationary | |
| 45. |
A freely suspended magnet remains horizontal at |
| A. | The magnet equator |
| B. | The magnetic north pole |
| C. | The magnetic south pole |
| D. | The geographic pole |
| Answer» B. The magnetic north pole | |
| 46. |
The quantity that is not conserved in an inelastic collision is |
| A. | Momentum |
| B. | Kinetic Energy |
| C. | Total Energy |
| D. | All of these |
| Answer» C. Total Energy | |
| 47. |
Which physicists is the writer of the book 'A Brief History of Time' |
| A. | Isaac Newton |
| B. | Hans Bethe |
| C. | Albert Einstein |
| D. | Stephen Hawking |
| Answer» E. | |
| 48. |
Echo is heard due to |
| A. | Refraction |
| B. | Scattering |
| C. | Reflection |
| D. | Interference |
| Answer» D. Interference | |
| 49. |
Positive feedback is used in |
| A. | Amplifiers |
| B. | Rectifiers |
| C. | Oscillators |
| D. | None of these |
| Answer» D. None of these | |
| 50. |
Kirchoffs Voltage Law is known as |
| A. | Conservation of Charge |
| B. | Conservation Energy |
| C. | Both |
| D. | None of these |
| Answer» C. Both | |