MKS system is similar to

Options

A. CGS system
B. FPS system
C. SI system
D. None of these

Answer

To determine which system the MKS system is similar to, we can analyze the units of measurement in each system provided in the options.

### Step-by-step Solution:

1. **Identify the Units in the MKS System**:
- The MKS system uses:
- Length: Meter (m)
- Mass: Kilogram (kg)
- Time: Second (s)

2. **Analyze Option 1 (CGS System)**:
- The CGS system uses:
- Length: Centimeter (cm)
- Mass: Gram (g)
- Time: Second (s)
- Since the units of length and mass are different from MKS, this option is not similar.

3. **Analyze Option 2 (FPS System)**:
- The FPS system uses:
- Length: Foot (ft)
- Mass: Pound (lb)
- Time: Second (s)
- Again, the units of length and mass are different from MKS, so this option is also not similar.

4. **Analyze Option 3 (SI System)**:
- The SI system (International System of Units) uses:
- Length: Meter (m)
- Mass: Kilogram (kg)
- Time: Second (s)
- Since all the units are the same as those in the MKS system, this option is indeed similar.

5. **Analyze Option 4 (None of These)**:
- This option suggests that MKS is not similar to any of the provided systems. However, we have already established that it is similar to the SI system.

### Conclusion:
- The MKS system is similar to the **SI system** (Option 3).

### Final Answer:
- **Option 3: SI system is the correct answer.**