A micro-machined silicon cantilever used in an atomic force microscope (AFM) has a natural frequency of oscillation of 125 Hz.
Which statement is correct about this cantilever's oscillations?
The cantilever can be forced to vibrate at its maximum displacement amplitude when the frequency of the driving force is approximately 125 Hz125\text{ Hz}125 Hz.
The period of the cantilever's free oscillations decreases as the maximum displacement decreases.
The natural period of the cantilever's oscillation is 1.25 ms1.25\text{ ms}1.25 ms.
Resonance will occur if the cantilever is driven by a periodic force with a frequency of 250 Hz250\text{ Hz}250 Hz.
39 exam-style questions on OCR A A Level Physics Oscillations, covering Simple harmonic oscillations, Energy of a simple harmonic oscillator, and Damping. Each one has a worked solution and a mark scheme showing where the marks go.