Oscillation — Physics MCQs (Class 11)
Free chapter-wise Physics MCQs with answers for MDCAT, FSc and entry tests.
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#17 The condition for critical damping is:
A) $\zeta = 1$
B) $\zeta > 1$
C) $\zeta = 0$
D) $\zeta < 1$
#18 In heavy damping, the system:
A) oscillates with a high amplitude
B) does not oscillate
C) oscillates with a low amplitude
D) remains in equilibrium
#19 Resonance occurs when the driving frequency is:
A) twice the natural frequency
B) less than the natural frequency
C) equal to the natural frequency
D) greater than the natural frequency
#20 The amplitude of an oscillating system at resonance:
A) decreases
B) increases significantly
C) remains constant
D) becomes zero
#21 In resonance, the phase difference between the driving force and the oscillating object is:
A) zero
B) ninety degrees
C) one hundred eighty degrees
D) one hundred degrees
#22 In the equation $x(t) = A \cos(\omega t + \phi)$, $\omega$ is:
A) angular frequency
B) velocity
C) amplitude
D) phase constant
#23 The velocity in SHM is given by:
A) $v(t) = -A\omega \sin(\omega t + \phi)$
B) $v(t) = A\cos(\omega t + \phi)$
C) $v(t) = \omega t$
D) $v(t) = A\omega \sin(\omega t + \phi)$
#24 The acceleration in SHM is given by:
A) $a(t) = \omega x(t)$
B) $a(t) = A\omega^2$
C) $a(t) = -\omega^2 x(t)$
D) $a(t) = -A\omega^2 \cos(\omega t + \phi)$
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