Multiple choice question for engineering Set 1 1. The displacement of a particle varies according to the relation x=4(cosπt+sinπt) The amplitude of the particle is a) -4 b) 4 c) 4√2 d) 8 AnswerAnswer: c [Reason:] x=4(cosπt+sinπt) x=4√2 (sin(π/4)cosπt+cos(π/4)sinπt) x=4√2 sin(πt+π/4) Clearly,amplitude=4√2 2. The displacement y of a particle in a medium can be expressed…