CTET Solved Paper - RTET Feburary 2011 Paper2

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131. Property of sublimation is found in

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132. Heat required to increase 1°C temperature of 1 kg

  • Option : D
  • Explanation : 1000 calories required to increase 10 C temperature of 1 kg.
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133. Image formed by a convex spherical lens is

  • Option : A
  • Explanation : Image formed by a convex spherical lens is imaginary and erect.
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134. For an incident ray of light, if mirror is rotated by an angle θ, then reflected ray will rotate by an angle

  • Option : B
  • Explanation : Reflected ray will rotate by an angle 2θ.
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135. A patient of hypermetropia is given spectacles of

  • Option : C
  • Explanation : The defect of hypermetropia can be corrected by using convex lens.
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