Question

One joule is approximately equal to :

• A. $0.28cal$
• B. $0.32cal$
• C. $0.24cal$
• D. $4.2cal$

Answer 1

The correct option is C $0.24cal$

$Joule$ is a unit of energy where $1J=0.24cal$ where, $1cal$ is the amount of energy required to raise the temperature of $1$ $gram$ of water by $1^{o}C$.