Physics
Oscillation
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#97 In damped oscillations, the amplitude:
A) increases with time
B) depends on velocity
C) remains constant
D) decreases with time
#98 Resonance occurs when the driving frequency is:
A) equal to the natural frequency
B) less than the natural frequency
C) twice the natural frequency
D) greater than the natural frequency
#99 The phase difference in SHM is:
A) $\Delta \phi = \omega t^2$
B) $\Delta \phi = 2\pi$
C) $\Delta \phi = \omega t$
D) $\Delta \phi = \frac{1}{\omega}$
#100 In damped oscillations, the amplitude:
A) remains constant
B) decreases with time
C) depends on velocity
D) increases with time
#101 At the maximum displacement in SHM, the velocity is:
A) undefined
B) half of maximum
C) maximum
D) zero
#102 The principle of operation of musical instruments like guitars is based on:
A) resonance
B) damped oscillations
C) forced oscillations
D) simple harmonic motion
#103 The velocity in SHM is given by:
A) $v(t) = -A\omega \sin(\omega t + \phi)$
B) $v(t) = A\omega \sin(\omega t + \phi)$
C) $v(t) = A\cos(\omega t + \phi)$
D) $v(t) = \omega t$
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