What is stroboscope? A hand stroboscope is used to freeze the wave. - ppt video online download
Par un écrivain mystérieux
Last updated 26 mai 2024
The waves are seen only when a slit passes in front of the eye. screen stroboscope observer wave pattern The waves are seen only when a slit passes in front of the eye.
What is stroboscope? A hand stroboscope is used to freeze the wave.
slits. It has a disc with 6 to 12 uniformly spaced slits. The disc is rotated by hand about an axis through its centre.
screen. stroboscope. observer. wave pattern. The waves are seen only when a slit passes in front of the eye.
3 revolutions per second. How many slits pass in front of the eye per second 24 slits. The strobe frequency of the hand stroboscope is 24 Hz. Strobe frequency = number of slits on the disc. number of revolutions per second.
Viewing without stroboscope. 0 s s s. Frequency of water wave = 20 Hz s s s s. The wave moves a distance of one wavelength every 0.05 s s. 0.1 s. observer.
The time interval between successive sightings is 0.05 s s s s. The wave moves one wavelength each time we see it s s. 0.1 s. The wave pattern is ‘frozen’. observer. observation.
The time interval between successive sightings is 0.1 s s s s. The wave moves two wavelengths each time we see it s s. 0.1 s. The wave pattern is ‘frozen’. observer. observation.
Time interval between two successive sightings. An integral multiple of the period (T, 2T, 3T…) = The wave appears to be ‘frozen’. The corresponding strobe frequencies. (f is wave frequency) Strobe frequency is slightly higher than. The wave appears to move backwards slowly. Strobe frequency is slightly less than. The wave appears to move forward slowly.
The time interval between successive sightings is s s s s. The wave moves half a wavelength each time we see it s s s. The wave pattern is ‘frozen’ but its wavelength appears to be halved s. 0.1 s. This is called double viewing. observer. observation. Simulation: Stroboscope.
Frequency, wavelength and speed. How can we determine the speed of a wave 1. Find the frequency and wavelength of the wave. 2. Calculate the wave speed using the wave equation v = f.
The wave frequency is the highest possible strobe frequency that can freeze the wave without observing a reduced wavelength.
Method Place a transparent ruler in the ripple tank. 2. Freeze the wave. 3. Read the wavelength directly.
3. Calculate the actual wavelength using the following formula: .
Check Point. Key Ideas. Previous Page. Section Exit.
What is stroboscope? A hand stroboscope is used to freeze the wave.
slits. It has a disc with 6 to 12 uniformly spaced slits. The disc is rotated by hand about an axis through its centre.
screen. stroboscope. observer. wave pattern. The waves are seen only when a slit passes in front of the eye.
3 revolutions per second. How many slits pass in front of the eye per second 24 slits. The strobe frequency of the hand stroboscope is 24 Hz. Strobe frequency = number of slits on the disc. number of revolutions per second.
Viewing without stroboscope. 0 s s s. Frequency of water wave = 20 Hz s s s s. The wave moves a distance of one wavelength every 0.05 s s. 0.1 s. observer.
The time interval between successive sightings is 0.05 s s s s. The wave moves one wavelength each time we see it s s. 0.1 s. The wave pattern is ‘frozen’. observer. observation.
The time interval between successive sightings is 0.1 s s s s. The wave moves two wavelengths each time we see it s s. 0.1 s. The wave pattern is ‘frozen’. observer. observation.
Time interval between two successive sightings. An integral multiple of the period (T, 2T, 3T…) = The wave appears to be ‘frozen’. The corresponding strobe frequencies. (f is wave frequency) Strobe frequency is slightly higher than. The wave appears to move backwards slowly. Strobe frequency is slightly less than. The wave appears to move forward slowly.
The time interval between successive sightings is s s s s. The wave moves half a wavelength each time we see it s s s. The wave pattern is ‘frozen’ but its wavelength appears to be halved s. 0.1 s. This is called double viewing. observer. observation. Simulation: Stroboscope.
Frequency, wavelength and speed. How can we determine the speed of a wave 1. Find the frequency and wavelength of the wave. 2. Calculate the wave speed using the wave equation v = f.
The wave frequency is the highest possible strobe frequency that can freeze the wave without observing a reduced wavelength.
Method Place a transparent ruler in the ripple tank. 2. Freeze the wave. 3. Read the wavelength directly.
3. Calculate the actual wavelength using the following formula: .
Check Point. Key Ideas. Previous Page. Section Exit.
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