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Physics – General – LS

Physics – Set 3

Dear ! This is Physics – Set 3  Quiz and it contains 100 questions.

Happy Learning!

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1. Materials that allow electricity to flow are called

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2. For which of the following substances, the resistance decreases with increase in temperature?

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3. What is the SI unit of electric current?

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4. What apparatus is used to locate a submerged object?

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5. The S.I. unit of electric charge is :

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6. Sound following a flash of lightning is called

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7. Fish and other aquatic creatures can live inside a deep frozen pond because

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8. The number of waves per second in a sound is called ________ of that sound.

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9. Outside of cooking utensils are generally left black from below because

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10. In SONAR which kind of wave is used?

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11. The atmosphere is heated mainly by

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12. Sound becomes hazardous noise pollution at decibels?

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13. Speed of sound is maximum in which among the following?

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14. What is the SI unit of intensity of sound?

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15. Which is best used as a sound absorbing material in partition walls ?

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16. Railway tracks are banked on curves so that

 

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17. Why does ice covered in sawdust not melt quickly ?

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18. The magnitude of current flowing between two end points of a conductor is proportional to the potential difference between them and is called as:

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19. The unit of noise pollution (level) is :

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20. In severe winter, in cold countries water pipes burst because

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21. The intensity ratio of waves is 25 : 9. What is the ratio of their amplitudes?

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22. What is the full form of “RADAR” ?

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23. The density of water is 1 g/cc. This is strictly valid at

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24. Acceptable noise level for human ear

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25. Electrical Energy is the energy of

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26. The velocity of the sound is highest in

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27. Least audible sound for most of the human ear is :

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28. The S.I. unit of electric charge is :

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29. Specific gravity is defined as the ratio of

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30. The fundamental scientific principle in the operation of battery is

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31. The pitch of sound depends on its

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32. The instrument for measuring intensity of earthquakes is called

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33. An object at rest may have

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34. The cause for the Tsunami, as deduced by the seismologists, is

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35. Instrument used to study the behaviour of a vibrating string is :

 

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36. The speed of sound travel fastest through

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37. Which of the following are methods of heat transfer?

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38. Which statement best describes an igneous intrusion?

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39. The colours of stars depend on their

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40. Lakes freeze in cold countries in winter, leaving the water underneath at

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41. The density of water is 1 g/cc. This is strictly valid at

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42. Lightning heats the surrounding air to

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43. Quality of a musical note depends on

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44. Indicate the false statement about the resistance of a wire

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45. The rate of flow of electric charge is measured in

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46. The substance which conducts current in the solid state is

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47. The shape of our milky way galaxy is

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48. Man perceives sound vibrations in the frequency ranges of

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49. Thermal expansion of materials arises from

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50. Decibel is a term connected with :

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51. Electrical burns occur principally because of

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52. Ice is packed in saw dust because

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53. To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor

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54. Noise is measured in

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55. A decibel is

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56. The SI unit of resistance is:

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57. A white and smooth surface is

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58. If the current flowing through a circuit is 0.6 A for 6 mins, the amount of electric charge flowing through it is ________

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59. Speed of sound is the greatest in :

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60. Which of the following laws validates the statement that matter can neither be created nor destroyed ?

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61. Sound waves do not show the phenomenon of

 

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62. Which conservation principle is applicable in the case of the motion of a rocket?

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63. Infrasonic sound has a frequency lower than

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64. Sound cannot pass through

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65. Among the following materials sound travels fastest in

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66. The density of a gas is maximum at

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67. An instrument that records earthquakes is

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68. When a bottle of perfume is opened in one corner of a room the smell spreads soon throughout the room. This is an example of

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69. Hertz is a unit for measuring

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70. Heat transfer by radiation mainly depends upon

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71. Decibel is the unit used for

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72. When a vibrating tuning fork is placed on a table, a loud sound is heard. This is due to :

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73. A device which is used to limit the current in an electrical circuit is called a

 

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74. Ohm’s law is valid in case of

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75. As water is cooled from 4 deg C to 0 deg C, its density

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76. Thermocouple consists of

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77. Pipelines in cold countries often burst in winter, because

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78. If a band is played on the moon the sound will

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79. Which is a common first indicator of an approaching thunderstorm?

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80. A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).

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81. Hertz is the SI unit of

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82. The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because

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83. Heat energy is transferred by conduction whenever molecules

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84. A small gap is left at the joints of rails in a railway track to

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85. When water freezes its density

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86. The density of the liquid when heated

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87. Electric current is measured by which instrument?

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88. The boiling point of liquids vary as

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89. The freezing point of fresh water is ________ .

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90. In general, which is the cause of a sea breeze?

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91. When heated from 0 to 100oC volume of a given mass of water will :

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92. A bimetal made copper and iron strips welded together is straight at room temperature. It is held vertically with iron strip towards left and copper strip towards right. If this bimetal is heated, it will

 

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93. Which of the following is not an intrusive igneous body?

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94. Sound waves cannot travel through

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95. The speed of sound in air depends on

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96. Water has maximum density at

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97. Which determines the frequency of a sound wave?

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98. The direction of heat flow between two objects depends on

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99. Compressions and Rarefactions are characteristic of

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100. The velocity of sound in air

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