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NEET2020PhysicsChapterActual

Two absolute scales A and B have triple points of water defined to be 200 A and 350 B. What is the ratio of T A and T B ?

Options

  1. A4 7
  2. B3 7
  3. C1 7
  4. D7 1

Correct answer

A. 4 7

Step-by-step solution

Given, triple point of water on scale A = 200 A Triple point of water on scale B = 350 B We know that triple point of water on absolute scale = 273.16 K ∴ 200 A = 350 B = 273.16 K ∴ 1 A = 2 7 3 . 1 6 2 0 0 K and 1 B = 2 7 3 . 1 6 3 5 0 K If T A and T B are the triple point of water on two scales A and B, then 2 7 3 . 1 6 2 0 0 T A = 2 7 3 . 1 6 3 5 0 T B T A T B = 2 0 0 3 5 0 = 4 7 or T A = 4 7 T B .

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