Design of the experiment of parametric oscillations of a simple pendulum.
The amplitude of parametric oscillations increase before achieving a stable oscillatory state.
Amplitude of parametric oscillations vs frequency change of pendulum length (frequency of wave generator). The natural pendulum frequency , .
Experimental design for parametric oscillations of mass-spring system.
Position vs time for coupled oscillation of the spring-mass system (showing periodic conversion of vertical and horizontal oscillations).
The arrangement to produce standing waves in the string. Variable wave generator can oscillate in the direction of the string or perpendicular to the string (in vertical or horizontal directions).
Resonance frequencies for the first, second, and third modes of string standing waves for vertical (f) and horizontal (F) vibrator oscillations.
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