The range of time scale is of the order of

Options

A. `10^(-24)s` to `10^17`s
B. `10^(-14)s` to `10^18`s
C. `10^(-14)s` to `10^26`s
D. `10^(-20)s`to`10^20s`

Answer

To solve the question regarding the range of time scale in physics, we will analyze the limits of measurement in the physical world.

### Step-by-Step Solution:

1. **Understanding the Concept of Range**:
- The range refers to the limits within which measurements can be made. In physics, this includes both very small and very large scales.

2. **Identifying the Lower Limit**:
- The smallest measurable time scale is on the order of \(10^{-43}\) seconds, known as the Planck time. This is the time it takes for light to travel one Planck length.

3. **Identifying the Upper Limit**:
- The largest measurable time scale can be considered as the age of the universe, which is approximately \(10^{18}\) seconds (around 13.8 billion years).

4. **Establishing the Range**:
- Therefore, the range of time scales in physics can be expressed as:
\[ 10^{-43} \text{ seconds} \text{ to } 10^{18} \text{ seconds} \]

5. **Conclusion**:
- The range of time scales in physics is thus from \(10^{-43}\) seconds to \(10^{18}\) seconds.

### Final Answer:
The range of time scale is of the order of \(10^{-43} \text{ seconds to } 10^{18} \text{ seconds}\).

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