i) A - cathode; B - Anode;
ii) To provide p.d. between the anode and the cathode ;
sharon kalunda answered the question on May 31, 2019 at 11:09
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i) Explain how compression and rarefactions are formed.
iii) The wavelength of the waves produced is...(Solved)
The figure shows a loudspeaker producing sound waves in air.
i) Explain how compression and rarefactions are formed.
iii) The wavelength of the waves produced is 0.4m. Determine the frequency of the waves if the speed of sound in air is 330m/s.
Date posted: May 31, 2019. Answers (1)
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Date posted: May 31, 2019. Answers (1)
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i) Using...(Solved)
The figure below shows a graph of values of reciprocal of frequency and corresponding values of wavelength for waves transmitted in a certain medium.
i) Using the wave equation, give the equation of the graph.
ii) Use the graph to determine the velocity of the waves.
Date posted: May 31, 2019. Answers (1)
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When the magnet is suddenly moved towards the coil in the direction shown, the galvanometer...(Solved)
The figure below shows a coil connected to a sensitive galvanometer.
When the magnet is suddenly moved towards the coil in the direction shown, the galvanometer shows a deflection.Explain.
Date posted: May 31, 2019. Answers (1)
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Name an electromagnetic radiation with highest energy photons.
Date posted: May 31, 2019. Answers (1)
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Date posted: May 31, 2019. Answers (1)
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ammeter...(Solved)
The figure below shows a circuit diagram. The emf of the cell is 1.5V. When the switch is closed, the voltmeter reads 1.3V and the
ammeter reads 0.8A.
Determine the internal resistance of the cell.
Date posted: May 31, 2019. Answers (1)
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glass.
Determine angle...(Solved)
The figure shows a ray of light travelling through a vacuum enters liquid X at an angle of 50°, travels through and emerges in
glass.
Determine angle Y.
Date posted: May 31, 2019. Answers (1)
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Date posted: May 31, 2019. Answers (1)
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Sketch on the same diagram the path of the rays after striking the...(Solved)
The figure below shows two parallel light rays incident on a concave mirror.
Sketch on the same diagram the path of the rays after striking the mirror and show the image.
Date posted: May 31, 2019. Answers (1)
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A person claps his hands at approximately 0.5s intervals in front of a wall 90m away. He notices that each echo produced by the wall coincides with the next clap.
i) Calculate the approximate speed of sound
ii) If the results obtained above were used as a basis for an experimental method to determine the speed of sound, what procedure should be adopted to obtain high accuracy in the timing part of the experiment?
Date posted: May 31, 2019. Answers (1)
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Date posted: May 31, 2019. Answers (1)
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Date posted: May 31, 2019. Answers (1)
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The figure below shows a ray of light incident on a plane mirror.
The mirror is rotated through 10° clockwise about point O in an axis perpendicular to plane mirror. Determine the angle between the incident ray and the new reflected ray.
Date posted: May 31, 2019. Answers (1)
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Determine the image distance(Solved)
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Date posted: May 31, 2019. Answers (1)
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Date posted: May 31, 2019. Answers (1)
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Suppose that an object is attached to a spring balance on the Earth's surface and Earth's speed of rotation is gradually increased. What effect, if any, will this have on.
i) the gravitational attraction between the object and the Earth.
ii) the reading of the spring balance.
Date posted: May 31, 2019. Answers (1)
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Date posted: May 31, 2019. Answers (1)
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An object put on a beam balance gives the same reading no matter where it is on the Earth's surface, but if it is on a very
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Date posted: May 31, 2019. Answers (1)
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Give a reason why the driver of the car has to move through the same bend at a lower speed during a rainy day.
Date posted: May 31, 2019. Answers (1)