Co-efficient of friction depends on -

অন্যান্য অন্যান্য 05 Oct, 2018

প্রশ্ন Co-efficient of friction depends on -

  • ক.
    area of contract only
  • খ.
    nature of surface only
  • গ.
    both a and b
  • ঘ.
    none of these

সঠিক উত্তর

area of contract only

মন্তব্য

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