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The equation of the displacement of two particles making SHM are represented  by y1 = a sin ωt + ϕ & y2 = a cos ωt The phase difference of the velocities of the two  particles is 

1.  π2 + ϕ  

2.  -ϕ  

3.  ϕ  

4.  ϕ - π2

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 The displacement of a particle executing SHM is given by y = 0.25 (sin 200t) cm. The maximum speed of the particles is:

1.  200 cm/sec

2.  100 cm/sec

3.  50 cm/sec

4.  0.25 cm/sec

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which of the following figure represents damped harmonic motion

1.  i and ii

2.  iii and iv

3.  i, ii, iii, and iv

4.  i, and  iv

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A particle is executing SHM with amplitude A and time period T. If at t = 0, it is at origin mean position then find the time instant, whenit covers a distance equal to 5A2  

1.  T12  

2.  5T12  

3.  7T12  

4.  2T3

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The time period of a spring mass system at the surface of earth is 2 second. What will be the time period of this system at mooon where  acceleration due to gravity is 16th of the value of earth's surface.

1.  16 seconds  

2.  26seconds 

3.  2 seconds 

4.  12 seconds

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The amplitude of a wave is presented by A = ca + b - c then resonance will occur when  

1.  b = -c2 

2.   b = 0, a = c   

3.   b = -c2a   

4.   a = b

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