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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 velocity of the sound is highest in

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3. In SONAR which kind of wave is used?

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

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

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6. Sound cannot pass through

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7. Sound becomes hazardous noise pollution at decibels?

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8. An instrument that records earthquakes is

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9. Man perceives sound vibrations in the frequency ranges of

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10. The colours of stars depend on their

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

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

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13. Compressions and Rarefactions are characteristic of

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

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15. Electrical burns occur principally because of

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

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

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18. Ice is packed in saw dust because

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19. The freezing point of fresh water is ________ .

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20. Ohm’s law is valid in case of

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21. The instrument for measuring intensity of earthquakes is called

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22. Decibel is a term connected with :

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

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

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

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

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27. Noise is measured in

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

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

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

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31. What is the SI unit of electric current?

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

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

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34. Water has maximum density at

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35. The density of the liquid when heated

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36. Speed of sound is the greatest in :

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37. The boiling point of liquids vary as

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

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39. A white and smooth surface is

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

 

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41. Electrical Energy is the energy of

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42. 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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43. The atmosphere is heated mainly by

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

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45. Hertz is a unit for measuring

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

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47. Acceptable noise level for human ear

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48. Sound waves do not show the phenomenon of

 

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49. The pitch of sound depends on its

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50. The shape of our milky way galaxy is

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

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52. Heat energy is transferred by conduction whenever molecules

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

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54. When water freezes its density

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

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

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57. Thermocouple consists of

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

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

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

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61. The speed of sound travel fastest through

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62. Sound waves cannot travel through

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63. Railway tracks are banked on curves so that

 

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

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

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

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67. Decibel is the unit used for

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68. Sound following a flash of lightning is called

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69. 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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70. An object at rest may have

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

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72. Infrasonic sound has a frequency lower than

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

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74. The density of a gas is maximum at

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

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

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77. The speed of sound in air depends on

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

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79. Which statement best describes an igneous intrusion?

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80. Which determines the frequency of a sound wave?

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81. Among the following materials sound travels fastest in

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82. Electric current is measured by which instrument?

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83. Thermal expansion of materials arises from

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84. A decibel is

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85. Heat transfer by radiation mainly depends upon

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86. Quality of a musical note depends on

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

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88. Lightning heats the surrounding air to

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89. The SI unit of resistance is:

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90. 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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91. 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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92. 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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93. A device which is used to limit the current in an electrical circuit is called a

 

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94. Hertz is the SI unit of

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95. Materials that allow electricity to flow are called

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

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

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98. The velocity of sound in air

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99. Specific gravity is defined as the ratio of

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

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