Question

Which among the following is the correct relation between joule and erg?

• A. 1 joule = ${10}^5$ erg
• B. 1 joule = ${10}^6$ erg
• C. 1 joule = ${10}^7$ erg
• D. 1 joule = ${10}^8$ erg

Answer 1

The correct option is C 1 joule = ${10}^7$ erg

Joule is a unit of energy in the SI units. Erg is the unit of energy in CGS unit. The relation between them is given as:
1 joule = ${10}^7$ erg