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Physics · UNITS AND MEASUREMENT
हिन्दीThe diameter of the Earth is \( 1.28 \times 10^7 \text{ m} \) and the diameter of a hydrogen atom is \( 1.06 \times 10^{-10} \text{ m} \). By how many orders of magnitude is the diameter of the Earth larger than that of the hydrogen atom?
Correct answer · Option 1
17
Explanation
Order of magnitude of Earth's diameter is \( 7 \) (since \( 1.28 \le 5 \)). Order of magnitude of hydrogen atom diameter is \( -10 \) (since \( 1.06 \le 5 \)). Difference in orders of magnitude = \( 7 - (-10) = 17 \).
