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

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

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

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4. What is the full form of “RADAR” ?

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5. Sound becomes hazardous noise pollution at decibels?

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

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7. The velocity of sound in air

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

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

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

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11. 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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12. What apparatus is used to locate a submerged object?

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13. What is the SI unit of electric current?

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14. Which determines the frequency of a sound wave?

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15. Decibel is the unit used for

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16. The speed of sound in air depends on

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17. An instrument that records earthquakes is

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

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

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20. A white and smooth surface is

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

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22. In SONAR which kind of wave is used?

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

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

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25. Specific gravity is defined as the ratio of

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26. Sound waves do not show the phenomenon of

 

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27. Water has maximum density at

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28. The atmosphere is heated mainly by

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29. Materials that allow electricity to flow are called

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30. 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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31. If a band is played on the moon the sound will

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32. When water freezes its density

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33. Lightning heats the surrounding air to

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

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

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36. Sound cannot pass through

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37. Thermal expansion of materials arises from

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38. Noise is measured in

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39. Heat energy is transferred by conduction whenever molecules

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

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41. Electrical Energy is the energy of

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42. Infrasonic sound has a frequency lower than

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43. Decibel is a term connected with :

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

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45. Speed of sound is the greatest in :

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

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

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48. The density of the liquid when heated

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49. Man perceives sound vibrations in the frequency ranges of

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

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

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52. Hertz is a unit for measuring

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53. The SI unit of resistance is:

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54. Ice is packed in saw dust because

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

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56. A decibel is

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57. The pitch of sound depends on its

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

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59. The freezing point of fresh water is ________ .

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60. Among the following materials sound travels fastest in

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61. Which statement best describes an igneous intrusion?

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62. 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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63. The density of a gas is maximum at

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64. The speed of sound travel fastest through

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

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66. Sound following a flash of lightning is called

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67. The velocity of the sound is highest in

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68. Compressions and Rarefactions are characteristic of

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69. The boiling point of liquids vary as

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70. Heat transfer by radiation mainly depends upon

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

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

 

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73. Ohm’s law is valid in case of

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

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75. 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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76. An object at rest may have

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

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

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

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81. Thermocouple consists of

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82. Acceptable noise level for human ear

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

 

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

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

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86. Railway tracks are banked on curves so that

 

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

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88. The colours of stars depend on their

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89. Hertz is the SI unit of

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90. Quality of a musical note depends on

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91. The instrument for measuring intensity of earthquakes is called

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

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93. The shape of our milky way galaxy is

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94. Sound waves cannot travel through

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

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

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

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98. Electrical burns occur principally because of

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99. Electric current is measured by which instrument?

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

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