The statement “To call a dimensional quantity ‘large’ or ‘small’ is meaningless without specifying a standard for comparison” emphasizes the importance of reference standards in physics. Which of the following revised statements correctly reflects this principle?
| 1. | Atoms are very small objects. |
| 2. | A jet plane moves with great speed. |
| 3. | The mass of Jupiter is very large. |
| 4. | A proton is about \(1836\) times more massive than an electron. |
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