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Physics – General – LS

Physics – Set 14

Dear ! This is Physics – Set 14  Quiz and it contains 97 questions.

Happy Learning!

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1. A nuclear reactor is said to have become ‘critical’ when

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2. The p wave of a normal Electrocardiogram indicates

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3. Lamberts law is related to

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4. In quantum mechanics a particle is represented by a

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5. When a strong beam of light is passed through a colloidal solution, the light will

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6. Parabolic mirrors are used in  

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7. Electron microscope works on which of the following principles?

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8. Holography is a technique of   

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9. Radioactivity is due to 

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10. What is the phenomenon which established the transverse nature of light ?

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11. In the gamma decay of a nucleus

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12. Which, of the following radiations has the least wavelength ?   

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13. Which of the following is an example of continous emission spectrum?

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14. Which of the following waves cannot be polarized?

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15. When a piece of pure silicon is doped with aluminium, then 

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16. Which one among the following components can not be developed within an ”integrated circuit”?

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17. Which of the following phenomenon helps to conclude that light is a transverse wave?

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18. What is a compound microscope?

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19. The energy obtained from atoms is known as ________

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20. Find the power of a convex lens if the image formed is at a distance of 25 cm from the lens when the object is placed on the other side of the lens at 12 cm from the optical centre?

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21. The scientist who first sent electromagnetic waves to distant places is

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22. Which one of the following is used for sun glasses ?

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23. The width of depletion layer of a P-N junction

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24. A NOT gate can be implemented by:

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25. Purpose of an optical filter is to

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26. Universal gates are

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27. What is the range of Strong Nuclear force?

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28. The light rays used for eliminating bacteria is

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29. One can distinguish a telescope from a microscope by observing   

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30. Who among the following developed the technology of underground nuclear explosion ?

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31. Which one of the following is the correct sequence of passage of light in a compound microscope?

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32. For Gamma radiation, what stops its penetrating abilities?

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33. Solids which conduct electricity at higher temperature but not at lower temperature are called

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34. In a Laser (say neon laser) all the atoms emit the light waves of

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35. Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre?  

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36. The damage of the human body due to radiation (X-rays or gamma rays etc) is measured in :   

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37. The impurity atoms with which silicon should be doped to make p-type semiconductors are

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38. Gamma rays are emissions that have

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39. A soap bubble shows colours when illuminated with white light. This is due to

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40. Magnifying Glass is basically a

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41. The Laser is a beam of radiations which are

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42. The complete form of ‘IC’ in electronics is

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43. A metal semiconductor junction diode is called ________

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44. The optical phenomenon that is primarily responsible for the observation of rainbow on a rainy day is

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45. Instrument for measuring blueness of the sky or ocean is called ________   

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46. After removing two electrons from helium atom it become? 

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47. Which one of the following wavelengths of light is most effective in photosynthesis ? 

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48. For a ray of light to suffer total internal reflection it has to pass from :

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49. The wave of theory of light is based on

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50. What is colour of light related to ? 

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51. The final image in a simple microscope is 

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52. Fibre optics work on the principle of 

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53. Which of the following features of a tunnel diode is its drawback? 

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54. Which of these waves can be polarized ?

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55. Which type of reaction produces the most harmful radiation ? 

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56. For which Diode is used ? 

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57. To resolve an object in an electron microscope,

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58. In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is

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59. The light of distant stars is affected by

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60. A radioactive substance does not undergo any change (in mass or charge) during

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61. When two semiconductors of p and n-type are brought in contact, they form p-n junction which acts like a/an 

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62. Which one among the following components is used as an amplifying device?

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63. Optic fibres are used in :

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64. The distance between node and adjacent antinode is 30 cm. The wavelength is   

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65. The atmospheric layer reflecting radio waves is called 

 

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66. Nuclear reactors used to produce electricity are based on 

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67. Addition of suitable impurities into semiconductor, is called 

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68. Which of the following is used for regulated electric supply ?

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69. The magnifying power of an astronomical telescope can be decreased by   

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70. The wave theory of light can explain

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71. Optical fiber works on the principle of 

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72. An atom bomb based upon the principle of ________

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73. In electronics what comes under tank circuit ? 

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74. The sky appears blue due to

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75. An electron microscope gives higher magnification than an optical microscope, because :

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76. Fiber optics cable used in communication, works on the principle of

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77. Where is a transistor most likely to be found ?

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78. For which one of the following, ”Diodes” are generally used for?

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79. Person who is colourblind cannot distinguish between  

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80. Atomic packing factor of body centred cubic structure (bcc) is 

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81. A microscope used in pathological laboratories forms   

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82. Name the process of production of energy in the Sun   

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83. A simple microscope consists of :

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84. Lens is made up of which glass 

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85. Energy is continuously created in the sun due to:

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86. In a bipolar junction transistor

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87. Golden view of sea shell is due to

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88. The material used in the fabrication of a transistor is   

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89. Which of the following characteristics of light remains unchanged when light travels from vaccum enters water? 

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90. Photosynthesis takes place faster in   

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91. An integrated circuit is more advantages than a coventional circuit because

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92. A colour-blind person cannot

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93. Which of the following is optical illusion?

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94. Which microscope is often used to view metal surfaces?

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95. The formation of brilliant colors in a thin soap film is a consequence of the phenomena of

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96. The redness in atmosphere at Sunrise and Sunset is due to : 

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97. The mass defect is the result of what action occurring? 

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