Powder sprinkled on a carrom board makes the striker glide more easily because:
APowder magnetises the board
BPowder forms a thin layer that reduces the contact between the striker and the board, lowering friction
CPowder is heavier than air
DPowder cools the striker and makes it lighter
Answer & Solution
Correct answer: B. Powder forms a thin layer that reduces the contact between the striker and the board, lowering friction
The fine powder gets between the striker (or coins) and the board, reducing direct contact between their rough surfaces. With less interlocking of irregularities, friction is lower and the striker slides further.
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