Physics
Oscillation
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#89 The amplitude of an oscillating system at resonance:
A) becomes zero
B) increases significantly
C) remains constant
D) decreases
#90 In damped oscillations, the amplitude:
A) depends on temperature
B) increases with time
C) remains constant
D) decreases with time
#91 The principle of operation of musical instruments like guitars is based on:
A) simple harmonic motion
B) damped oscillations
C) forced oscillations
D) resonance
#92 The frequency $f$ of an oscillator is:
A) $f = T^2$
B) $f = \sqrt{T}$
C) $f = \frac{1}{T}$
D) $f = T$
#93 The period $T$ of a simple harmonic oscillator is related to angular frequency $\omega$ by:
A) $T = \frac{\omega}{2}$
B) $T = \frac{2\pi}{\omega}$
C) $T = 2\pi \omega$
D) $T = \frac{\omega}{2\pi}$
#94 In heavy damping, the system:
A) oscillates with a low amplitude
B) remains in equilibrium
C) oscillates with a high amplitude
D) does not oscillate
#95 The equation of motion for SHM is:
A) $F = ma$
B) $F = m\omega^2$
C) $F = -kx$
D) $F = -mv^2$
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