1. : A physical system undergoing forced vibration is called
(A) driven harmonic oscillator
(B) free harmonic oscillation
(C) frequency harmonic oscillator
(D) all of these
2. : In a microwave oven, the wavelength of the wave produced is
(A) 12cm
(B) 10cm
(C) 14cm
(D) 16cm
3. : In vehicles, shock absorbers reduce the jerks
(A) the shock absorber is the application of damped oscillations.
(B) damping effect is due to the fractional loss of energy
(C) shock absorbers in vehicles reduce jerk
(D) all of these
4. : Shock absorbers of the car is a practical example of
(A) forced oscillations
(B) damped oscillations
(C) undamped oscillations
(D) simple oscillations
5. : A process of energy being dissipated from the oscillating system is known as
(A) damping
(B) dumped oscillations
(C) undamped oscillations
(D) forced oscillations
6. : A heavily damped system has a fairly flat resonance curve in
(A) an acceleration time graph
(B) an amplitude frequency graph
(C) velocity time graph
(D) distance-time graph
7. : Loud music produced by sounding wooden boards of string instruments is an example of
(A) damped oscillations
(B) forced vibrations
(C) free vibrations
(D) beats
8. : The sharpness of the resonance curve of a resonating curve depends on
(A) loss in mechanical energy
(B) fractional loss of energy
(C) loss of potential energy
(D) loss of kinetic energy
9. : The oscillation in which the amplitude decreases steadily with time is known as
(A) damped oscillations
(B) simple oscillations
(C) undamped oscillations
(D) forced oscillations
10. : At equilibrium, the displacement of a vibrating body is
(A) maximum
(B) minimum
(C) zero
(D) both A and C