Q. Powder is used to

पाउडर का प्रयोग किया जाता है

A
Increase friction
घर्षण बढ़ाएँ
B
Make surface heavy
सतह को भारी बनाएं
C
Reduce friction
घर्षण कम करें
D
Increase roughness
खुरदरापन बढ़ाएँ

Explanation

Powders like talcum powder reduce friction by acting as a dry lubricant, creating a thin layer between surfaces and making motion smoother.

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