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Properties of Matter question

2008 · Q157
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Properties of Matter question

2008 · Q157

NEETPhysicsProperties of MatterMCQ+4 / −1
On a new scale of temperature (which is linear) and called the W scale, the freezing and boiling points of water are 39oW and 239oW respectively. What will be the temperature on the new scale, corresponding to a temperature of 39oC on the Celsius scale ?
  1. A
    200oW
  2. B
    139oW
  3. C
    78oW
  4. D
    117oW
View written solutionFree

Correct answer: D

W is the temperature on new scale corresponding to 39ºC on ºC scale.

So, (C – 0)/(100 – 0) = (W – 39)/(239 – 39)

⇒\Rightarrow⇒ C/100 = (W – 39)/200

⇒\Rightarrow⇒ W = (C/100) × 200 + 39

= (39/100) × 200 + 39

= 78 + 39 = 117

So, temperature on new scale is 117°W corresponding to 39°C.

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