Time Left:
600
sec
1. If we triple the mass on a simple pendulum, the frequency will be__________
A. Remain same
B. One-third what it was.
C. Six times what it was.
D. Three times what it was.
3. A frequency of 1Hz corresponds to:
A. 2 vibrations per second
B. 1 vibration per second
C. 10 vibrations per second
D. a time period of ½ second
4. A second pendulum is mounted in a space shuttle. Its period of oscillations will decrease when rocket is
A. moving in geostationary orbit
B. ascending up with uniform acceleration
C. descending down with uniform acceleration
D. moving up with uniform velocity
8. Find the amplitude of the S.H.M whose displacement y in cm is given by equation y= 3sin 157t +4cos157t where t is time in seconds.
A. 20Hz
B. 25Hz
C. 50Hz
D. 40Hz
9. What will be the phase difference between bigger pendulum (with time period 5T/4 )and smaller pendulum (with time period T) after one oscillation of bigger pendulum?
A. π/4
B. π/2
C. π/3
D. π
10. A particle executes linear simple harmonic motion with an amplitude of 2 cm. When the particle is at 1 cm from the mean position, the magnitude of its velocity is equal to that of its acceleration. Then its time period in seconds is:
A. 2π/√3
B. 2π√3
C. √3/2π
D. 1/ 2π√3
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