Stroboscope
Stroboscope
Light from a timing source
The stroboscope is a pulsed lamp which is used to observe rapidly moving phenomena, such as vibrating string or waves in a ripple tank.
If the frequency of “flashes” from the stroboscope matches the frequency of the object being observed, it causes the eye to see the image as been frozen at that matched frequency.
Hence useful measurements can be made and observations made easy.
On – off switch
Frequency range: 1 ÷ 300 Hz
External input for trigger
Slow down motion
Decomposition of colours
Make the Newton’s disk rotate and note that the colours merge and fuse to white. Now direct the strobo light on the Newton’s disk and observe that at a certain frequency of flashing the Newton’s Disk appears still and the colours do not change.
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