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Heat and Energy — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSHeat and Energy1 Mark
MCQ
$1\ J$ equals to :
  • ✓
    $0.24$ cal
  • B
    $4.18$ cal
  • C
    $1$ cal
  • D
    $1$ kcal
✓

Answer

Correct option: A.
$0.24$ cal
$1\ J$ equals to $: 0.24$ cal
$1$ calorie $= 4.186\ J$

Therefore,

$1\ J = 1/4.186 = 0.24$ cal

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