Q. Which of the following has the least friction?

निम्नलिखित में से किसमें सबसे कम घर्षण है?

A
Sandpaper
रेगमाल
B
Ice
बर्फ़
C
Wood
लकड़ी
D
Rubber
रबड़

Explanation

Ice has a very smooth surface and low resistance to motion, so it offers the least friction compared to sandpaper (very rough), wood, or rubber.

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