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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Pritam dalal Best Answer
actually in my first manipulation I approximated the frictional force that shouldn't be done! Here The relation I have used here is the exact relation friction, (T1>T2 always)! And lastly yes the correct answer is option a! For derivation refer to the second image! This is bit abstract concept that don't usually strike!