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

Rajasthan BoardEnglish MediumSTD 11 SciencePhysics10.1, thermonetry,thermal expansion and calorimetry1 Mark
MCQ
A faulty thermometer has its lower fixed point marked as $ - \,10^\circ C$ and upper fixed point marked as $110^o $ and upper fixed point marked as $110^o $. If the temperature of the body shown in this scale is $62^o $, the temperature shown on the Celsius scale is ........ $^oC$
  • A
    $72$
  • B
    $82$
  • ✓
    $60$
  • D
    $42$
✓

Answer

Correct option: C.
$60$
c
(c) $\frac{{X - L}}{{U - L}} = \frac{C}{{100}}$

==> $\frac{{62 - (10)}}{{110 - ( - 10)}} = \frac{C}{{100}}$ $(C = 60^o C)$

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