Q. A dry surface has more friction than

सूखी सतह पर घर्षण अधिक होता है

A
Wet surface
गीली सतह
B
Rough surface
खुरदुरा सतह
C
Oily surface
तैलीय सतह
D
Smooth surface
सौम्य सतह

Explanation

Moisture acts as a lubricant, so a wet surface reduces friction compared to a dry surface. Dry surfaces have more direct contact and resistance, resulting in greater friction.

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