Question

The ratio of SI unit to CGS unit of kinetic energy is

• A. 10⁷
• B. 10⁵
• C. 10^-5
• D. 10^-7

Answer 1

The correct option is A

10⁷

Explanation for correct option:

1. The SI unit of kinetic energy is joules (J).
2. The CGS unit of kinetic energy is erg.
3. Now, $1J={10}^{7}erg$
4. Therefore the ratio of a joule to erg will be:

$\frac{1J}{1erg}=\frac{{10}^{7}erg}{1erg}={10}^7$

6. Hence, the ratio between SI and CGS unit of kinetic energy is ${10}^7$.

Therefore, the correct option is (A).