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10.1, thermonetry,thermal expansion and calorimetry — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics10.1, thermonetry,thermal expansion and calorimetry1 Mark
MCQ
On the Celsius scale the absolute zero of temperature is at  .......... $^oC$ 
  • A
    $0$
  • B
    $-32$
  • C
    $100$
  • ✓
    $-273.15$
✓

Answer

Correct option: D.
$-273.15$
d
(d) $T = 273.15 + t^\circ C$ $\Rightarrow$ $0 = 273.15 + t^\circ C$ $\Rightarrow$ $t = - 273.15^\circ C$

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