The S.H.M. of a particle is given by the equation . The amplitude of motion is:

(A)

7

(B)

12

(C)

1

(D)

5

Question-2

A particle executing S.H.M has amplitude 0.01 m and frequency 60 Hz. The maximum acceleration of the particle is:

(A)

(B)

(C)

(D)

Question-3

The acceleration of a particle in S.H.M. is:

(A)

Always constant

(B)

Maximum at extreme positions

(C)

Maximum at mean position

(D)

Always zero

Question-4

A particle is performing simple harmonic motion along the x axis with amplitude 4 cm and time period 1.2 sec. The minimum time taken by the particle to move from x = + 2 cm to x = + 4 cm and back again is:

(A)

0.4 s

(B)

0.3 s

(C)

0.2 s

(D)

0.6 s

Question-5

Two springs of spring constants k_{1}and k_{2} are joined in series. The effective spring constant of the combination is given by:

(A)

(B)

(C)

k_{1} + k_{2}

(D)

Question-6

A body executes SHM with an amplitude . At what displacement from the mean position is the potential energy of the body is one-fourth of its total energy ?

(A)

(B)

(C)

(D)

Some other fraction of a

Question-7

A mass m is suspended from a spring of negligible mass and the system oscillates with a frequency n. What will be the frequency of oscillations if a mass of 4 m is suspended from the same spring ?

(A)

(B)

2n

(C)

(D)

4n

Question-8

Which one of the following is a simple harmonic motion ?

(A)

Ball bouncing between two rigid vertical walls

(B)

Particle moving in a circle with uniform speed

(C)

Wave moving through a string fixed at both ends

(D)

Earth spinning about its own axis

Question-9

Two simple harmonic motions given by, act on a particle simultaneously, then the motion of particle will be:

(A)

Circular anticlockwise

(B)

Circular clockwise

(C)

Elliptical anticlockwise

(D)

Elliptical clockwise

Question-10

A point performs simple harmonic oscillation of period T and the equation of motion is given by After the elapse of what fraction of the time period the velocity of the point will be equal to half of its maximum velocity ?

(A)

(B)

(C)

(D)

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