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(a) It cannot be zero.

(b) Its magnitude is greater than the distance travelled by the object.

Answer :

(a) False because displacement can be zero if an object returns to its initial position after covering certain distance.

(b) False because the displacement of an object can be equal to distance travelled, but not greater as displacement is the shortest distance between initial and final position of an object, so how can it be greater then distance travelled.

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