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Heat and Thermodynamics — Physics STD 11 — Question

Tamilnadu BoardEnglish MediumSTD 11PhysicsHeat and Thermodynamics1 Mark
MCQ
A temperature at which both the Fahrenheit and the centigrade scales have the same value is
  • A
    40°
  • ✓
    -40°
  • C
    20
  • D
    – 20°
✓

Answer

Correct option: B.
-40°
– 40°
Solution :
Let the required temperature be t. then, $\frac{t}{5}=\frac{t-32}{9} \Rightarrow t=-40^{\circ}$

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