CTET Solved Paper - CTET Feburary 2016 Paper2

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66. Which of the follOwing statements are true about image formation in a plane mirror?
A. The image is larger in size than the object.
B. The image is formed at the same distance as the object.
C. The image is laterally inverted.
D. The image is virtual.

  • Option : A
  • Explanation : Properties of image formed by a plane mirror: (i) The distance between an image and mirror is equal to the f distance between mirror and object (ii) The left part of an object will appear to look as right part of the image and vice-versa. This is called laterally inverted. (iii) The image is virtual. (iv) Size of image equals to the size of object. So, B, C and D are true.
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67. Read the following examples from daily life and select the appropriate option.
A. When food gets spoiled, it produces a foul smell.
B. A slice of apple acquires brown colour when kept out for some time.
C. When an ant bites, calamine is used to ease the irritation on skin.

  • Option : C
  • Explanation : All the three processes are chemical changes as all shows oxidation reaction.
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68. "Copper cannot displace zinc from its salt solution. Give the reason." The following reasons are given by Class VIII students-
A. Copper is more reactive than zinc.
B. Copper is less reactive than zinc.
C. Zinc is one of the noble metals.
D. Zinc appears below copper in reactivity se!ies.
Select the correct reason(s) from the reasons given by Class VlII students.

  • Option : C
  • Explanation : Since, copper is less reactive than zinc, so it cannot displace zinc from its salt solution.
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69. A student burns a magnesium ribbon in air and dissolves the ash of the ribbon left after burning in distilled water. On pouring one drop each of this solution, first in blue litmus and then in red litmus solution, he would observe that

  • Option : D
  • Explanation : When magnesium ribbon is burnt in air, then it forms MgO. This MgO when dissolving in water forms Mg(OH)2 which is basic in nature (pH = 10.1). So, this solution turns red litmus into blue.
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DIRECTIONS (Q. Nos. 91-99) Read the passage given below and answer the questions that follow by selecting the correct / most appropriate options.

When the Sun had descended on the other side of the narrow strip of land, and a day of sunshine was followed by a night without twilight, the new lighthouse keeper was in his place evidently, for the lighthouse was casting its bright rays on the water as usual. The night was perfectly calm, silent, genuinely tropical, filled with a transparent haze, forming around the Moon a great coloured rainbow with soft, unbroken edges; the sea was moving only because the tide raised it.

The keeper on the balcony seemed from below like a small black point. He tried to collect his thoughts and take in his new position, but his mind was under too much pressure to move with regularity. He felt somewhat as a hurt beast feels when at last it has found refuge from pursuit on some inaccessible rock or in a cave. Now on that rock he can simply laugh at his previous wanderings, his misfortunes and failures. He was in truth like a ship whose masts, ropes and sails had been broken and rent by a tempest and might have been cast to the bottom of the sea, a ship on which the tempest had hurled waves and spat foam, but which still wound its way to the harbour.

The pictures of that storm passed quickly through his mind as he compared it with the calm future now beginning. Part of his wonderful adventures he had related to Mr. Shyam when he was interviewed for the job of the keeper; he had not mentioned, however, thousands of other incidents. It has been his misfortune that as often as he pitched his tent and fixed his fireplace to settle down permanently, some wind tore the stakes of his tent, whirled away the first and bore him on towards destruction.

Looking now from the balcony at the Lower of the illuminated waves, he remembered everything through which he had passed. He had campaigned In the four parts of the world and in wandering had tried almost every occupation.

70. The water around the lighthouse got lit up because

  • Option : D
  • Explanation : The water around the lighthouse got lit up because the lighthouse was casting its bright rays.
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