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Concepts Of Physics MCQ Edition [Volume 2]PhysicsHeat and Temperature

Which curve in the given figure depicts the relationship between Celsius and Fahrenheit temperatures?

Options

  1. Ac
  2. Bb
  3. Cd
  4. Da

Correct answer

D. a

Step-by-step solution

The relationship between temperature in Celsius ( C ) and Fahrenheit ( F ) is given by the equation: C = 5 9 (F - 32) Expanding this equation, we get: C = 5 9 F - 160 9 Comparing this with the equation of a straight line y = mx + c (where y is C and x is F ), we find: Slope ( m ) = 5 9 (which is positive) C -intercept = - 160 9 (which is negative) To find the F -intercept, we set C = 0 : 0 = 5 9 (F - 32) F = 32 (which is positive) A line with a positive slope, a negative C -intercept, and a positive F -intercept co

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