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Heat — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSHeat2 Marks
Question
Convert -$15^\circ C$ on the Fahrenheit scale.
✓

Answer

We know$ C/100 = (F - 32)/180.$
$C =5/9(F- 32)$
$9/5C + 32 =F$
$F = 9/5C + 32.$
Temperature given in Celsius $= -15^oC.$
$F = 9/5 X (-15) +32$
$F = -27 +32$
$F = 5^oF.$

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