make the rod longer the rod will shorten the period. The mass of the bob does not affect the period. You could also increase the gravitational pull.
Make the string longer.
T=1/f .5=1/f f=2
Connecting an ammeter does not reduce the frequency errors.
An oscillator has a tuned circuit (inductance+capacitance) to determine the frequency. When the inductor is tapped to give the required phase-shift for oscillation it is a Hartley oscillator. When the capacitance is tapped it is a Colpitts.
in general no. however some types of oscillators have enable or frequency selectinputs, without which they won't operate.
A local oscillator is used in a superheterodyne radio circuit for example.The incoming radio frequency is mixed with an internal local oscillator circuit to generate a new intermediate frequency (IF) .The local oscillator usually runs at a frequency of 470kHz and is generated by an inductor and capacitor(LC oscillator)
T=1/f .5=1/f f=2
decrease by a factor of 4
We could reduce random errors by taking the average of the time taken for one oscillation.
Motion of pendulum.
The longer the length of the pendulum, the longer the time taken for the pendulum to complete 1 oscillation.
simple pendulum would have 1 normal modes of oscillation or natural frequencies.
Mass oscillation time period = 2 pi sq rt. (m/k) Pendulum oscillation time period = 2 pi sq rt. (l/g)
The motion of the simple pendulum will be in simple harmonic if it is in oscillation.
A longer pendulum will have a smaller frequency than a shorter pendulum.
A simple pendulum exhibits simple harmonic motion
A Foucault pendulum is a pendulum with a large length which is free to oscillate in any vertical plane. At the equator, the plane of oscillation remains fixed relative to the earth. Elsewhere, the plane of oscillation rotates, at a speed that is related to the latitude of the location. In Paris, where Foucault's pendulum is located, the plane of the pendulum's oscillation moves at approx 11 degrees per hour. This movement can be used to tell the time.
Ubiquitous Frequency Oscillation - UFO - was created on 2009-07-02.