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Which among the following has erg as cgs unit?
1. Work
2. Power
3. Kinetic Energy
4. Both (1) and (3)

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Correct Answer - Option 4 : Both (1) and (3)

  • Energy is the capacity of doing work. Work and enegy have the same SI unit that is Joule. 
  • Erg is the CGS unit of energy and work. 
  • 1 erg = 10-7 Joule.
  • All kinds of energy have erg as its unit. 
  • Work and Kinetic energy both have erg as their CGS unit. 

So, the correct option is Both (1) and (3).

  • Power is defined as rate of doing work and have SI unit as Watt. 
  • SI unit are internationally accepted units for measurements. 
  • CGS is the another type of unit system, where centimeter is unit of distance, Gram is unit of mass and Second is the unit of time. 

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