Physics · Metrology

Surface roughness is best defined as:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1the root mean square deviation of the profile from the mean line over the length of assessment
2a minute succession of valleys and hills of different heights and varied spacing✓
3a continuous succession of uniform hills
4a continuous succession of uniform valleys

Correct answer

a minute succession of valleys and hills of different heights and varied spacing

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