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Physics – General – LS

Physics – Set 9

Dear ! This is Physics – Set 9  Quiz and it contains 100 questions.

Happy Learning!

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1. Which liquid is the most viscous?

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2. A boat loaded with rocks floats in the middle of a swimming pool. A man in the boat throws the rocks overboard. The level of water in the pool will

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3. The hair of shaving brush clings together when removed from water due to

 

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4. If a force acts upon two objects at rest, and having different masses for the same amount of time, then which one of the following will be the same for both the objects?

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5. In uniform circular motion, the linear velocity is perpendicular to

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6. Which measurement depends on gravitational force?

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7. Rise of oil a wick is due to 

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8. The absorption of ink by blotting paper involves

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9. The characteristic invalid for heat radiation is that it travels :

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10. The centre of gravity of a sprinter during the race lies 

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11. Who enunciated the laws of planetary motion?   

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12. Water drops cannot stick to the oily surface due to

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13. Soap bubble attains spherical shape due to ________

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14. Which of the following is indicated by the colour of a star ?

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15. A liquid disturbed by stirring comes to rest due to

 

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16. Water from soil enters into the root hairs owing to :

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17. If ice floating on water in a vessel melts, the water level in the vessel ________ .

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18. Sprayer functions on

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19. The height of a geo-stationary satellite from the Earth’s surface is approximately : 

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20. The velocity required to place a vehicle in orbit around the moon is ________ that required to place it in orbit round the earth. 

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21. Bubbles of air rise up through liquids due to

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22. When the speed of car is doubled, then what will be the braking force of the car to stop it in the same distance ?

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23. The lift of an aeroplane is caused by 

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24. The surface tension of water on adding detergent to it

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25. Knot is a measure of

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26. Why the needle of iron swims on water surface when it is kept gently ?

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27. Kepler’s law of planetary motion states that the square of the time period is proportional to the

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28. A tank filled partially with a liquid is subjected to a uniform horizontal acceleration. Which of the following is true for the surface of liquid in the tank?  

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29. Why is weightlessness experienced while orbiting the earth in space ships ? 

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30. What is unit of Viscosity ? 

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31. A pilot has to release the bomb to hit a target

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32. “God Particle” is

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33. An aircraft can perform aerobatic manoeuvres in a vertical loop because of  

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34. What will happen if an object is dropped from a height and there is no air resistance?

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35. An ice block with a piece of lead embeded in it floats in water. If ice melts the water level

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36. Rain drops acquire spherical shape due to

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37. A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water rises in the tube. The height of water rise in the tube can be increased by

 

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38. Which is evidence that supports the dynamo theory?  

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39. Which of the following instrument is used to measure Soil Water Tension? 

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40. Which of these branches of Physics deal with heat and temperature and their relation to energy and work?   

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41. Who gave the Theory of Relativity?

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42. Which of the following has the highest entropy?

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43. Should cars have bumpers that collapse under impact?

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44. The swing of a spinning cricket ball in air can be explained on the basis of

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45. Pieces of camphor placed on water move about rapidly. This is because of

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46. A small drop of oil spreads over water because : 

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47. The odometer guage indicates

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48. Blotting paper absorbs ink due to

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49. What property of matter is momentum related to?

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50. What is the other name of Galileo’s law of falling bodies?

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51. Siphon will fail to work if

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52. The spoon dropped by an astronaut in a satellite will

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53. A person can jump higher on the moon’s surface than on the earth because : 

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54. A bottle of sodalime is grasped by the neck and swung briskly in a vertical circle, Near which portion of the bottle do the bubbles collect?

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55. When a detergent is added to pure water, its surface tension 

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56. The velocity of falling rain drops attains a terminal value because of 

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57. Which of the following liquids has the least density ?

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58. If the diameter of a capillary is doubled, then the rise of water in it will be

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59. Which of these liquids has the highest viscosity?

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60. An oil drop spreads over water because 

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61. Flywheel is an important part of a steam engine because it :

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62. Rotameter is used to measure

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63. If cream is removed from milk, its density

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64. If the distance between Sun and Earth becomes double, then the gravitational force on Earth will be   

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65. The following particles move with same kinetic energy. Which of them has maximum momentum ?

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66. Consider the following statements : 1. There is no net moment on a body which is in equilibrium. 2. The momentum of a body is always conserved. 3. The kinetic energy of an object is always conserved. Which of the statements given above is/are correct?

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67. Pitot tube is used to measure

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68. A spherical ball made of steel when dropped in mercury container

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69. Which of the following is a result of Surface tension ?

 

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70. Fog is an example of

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71. The time period of a pendulum when taken to the Moon would: 

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72. The mass of a star is two times the mass of the Sun. How it will come to an end ?   

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73. Skids occur when the brakes are applied so hard that the front or rear wheels lose traction are called as

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74. Which of the following celestial bodies contains abundant quantities of helium-3, a potential source of energy ?

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75. A falling drop of rain water acquires the spherical shape due to

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76. A drop of liquid assumes spherical shape because:

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77. The oil in the wick of an oil lamp rises up due to:

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78. Materials for rain proof coats and tents owe their water proof properties to 

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79. The rate of change of linear momentum of a body falling freely under gravity is equal to it’s ________ ?

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80. The fact that two large ships travelling on close parallel courses in the same direction tend to move towards each other can be explained by

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81. The laws which govern the motion of planets are called ________ 

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82. The period of revolution of a geostationary satellite is 

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83. Oil rises up the wick in a lamp because

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84. The period of revolution of a certain planet in an orbit of radius R is T. Its period of revolution in an orbit of radius 4R will be: 

 

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85. If an ordinary glass tube and a glass capillary tube are both dipped in a beaker of water, water rises in

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86. During the motion of a projectile fired from the earth surface, ________

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87. According to the theory of relativity, which of the following always remains constant ?

 

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88. On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because

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89. A body falling through a liquid acquires a steady velocity is known as 

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90. Ball pen functions on the principle of :

 

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91. In the case of bodies falling under gravity which of the following remains constant at a given place?

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92. Two rods, one of copper and other of steel, experience the same upthrust when placed in water.Thus, both have  

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93. Surface tension in a liquid is due to :  

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94. Name the process by which bubbles from liquid are formed?

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95. A needle or a pin floats on the surface of water because of  

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96. The tidal waves on sea is mainly due to

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97. The large collection of stars, dust and gas held together by gravitational attraction between components is known as

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98. What is the minimum escape velocity of rocket to be launched into space ? 

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99. Which one is not a part of Kepler’s Law? 

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100. What is the minimum velocity required for a rocket to overcome earth’s gravity and travel into space? 

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