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  • Question 1
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    Directions For Questions

    Read the given information carefully and answer the question that follows.

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    Three containers contain different quantities of water.
    Container A contains 5 kg of water at 45°C.
    Container B contains 3 kg of water at 45°C.
    Container C contains 10 kg of water at 45°C.

    If we place all three containers in contact with each other, then which of the following is correct?

  • Question 2
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    If we mix 10 kg of water at 70°C with 10 kg of water at 20°C, then the temperature of the mixture will be

  • Question 3
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    What is the value of zero degree Kelvin on a Celsius scale?

  • Question 4
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    Which of the following thermometers can be used to measure the temperature of boiling water?

  • Question 5
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    Every temperature measuring instrument makes use of a physical property of a substance in order to measure temperature objectively. Which of the following physical properties is used by a mercury-in-glass thermometer?

  • Question 6
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    Directions For Questions

    Read the given information carefully and choose the correct answer.

    Rahul takes two thermometers, A and B. He wraps a black cloth on the bulb of thermometer A and a white cloth on that of thermometer B. He keeps the two thermometers in the Sun for an hour.

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    Statement A: The reading on the thermometer A is more than that on the thermometer B.

    Statement B: The black surface absorbs more heat than the white surface.

  • Question 7
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    Which of the following is/are the result(s) of transfer of heat by radiation?

    (i) If we sit near a fire, we feel warm.
    (ii) It is cooler in the shade, while it is hot in the Sun.
    (iii) In a toaster, slices of bread get heated from the heat of the coil.

  • Question 8
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    Which of the following statements is incorrect?

  • Question 9
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    Which of the following statements is true?

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