10 Question-Answer on periodic motion and S.H.M. 1. If in the equation y= 5 sin(0.05t + 0.05) , y represents the displacement at the instant t, then which one of the following gives the frequency? (A) 5 (B) 0.05 (C) 0.05/2π (D) 2π × 0.05 Ans: (C) 2. The displacement of the particle is represented by y = 10 sin (5t + θ). The period of oscillation is: (a) 2π/5s (b) 5/2πs (c) π/5s (d) 5/πs Ans: (a) 3. A body is executing S.H.M. When its displacement from the mean position is 4 cm and 5 cm, it has velocities 10 m/s and 8 cm/s respectively. Its periodic time t (a) π/2s (b) π s (c) 3π/2 s (d) 2πs Ans: (b) 4. A particle is simultaneousl...
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