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CTET Solved Paper - CTET September 2016 Paper2

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61. Ritu is standing in front of a plane mirror. The distance between Ritu and her image is 10 m. If she moves 2 m towards the mirror, then the distance between Ritu and her image is

  • Option : D
  • Explanation : We know that the distance of the object from the mirror equals the distance of image from the mirror. So, firstly Ritu is standing at 5 m from the mirror. If she moves 2 m towards the mirror, then her image will come closer by 2 m.
    Therefore, Now distance between Ritu and her image is = 3m + 3m = 6 m.
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62. You have three test tubes X, Y and Z half-filled with different solutions, as X is filled with sodium chloride solution, Y is filled with sodium hydroxide solution and Z is filled with dilute hydrochloric acid. On adding one drop of phenolphthalein solution to each of the above solutions, you would observe the solutions in the test tubes as

  • Option : B
  • Explanation : Phenolphthalein is a weak acid so it is colourless in acidic solution, pink in basic solution and since NaCl is neutral so it remains colourless when neutral.
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63. In our mouth, the arrangement of different types of teeth from front to back is

  • Option : A
  • Explanation : The arrangement of different types of teeth from front to back is Incisors-canines-premolars-molars.
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64. In plants and trees, water goes up high due to suction pull. Which of the following phenomena causes this suction pull?

  • Option : A
  • Explanation : Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapour and is released to the atomsphere.
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65. Which of the folloWing is the reproducing part of ginger?

  • Option : C
  • Explanation : Stem is the asexually reproducing underground part of ginger plant.
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CTET September 2016 Paper2