Two adjacent transmitters are 1.0m apart with a receiving aerial R halfway between them. The transmitters emit coherent em waves of wavelength 3.0cm.
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Card 8
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The student finds that the signal at the receiver R falls from max to zero when R is moved 0.75 cm towards a transmitter. Explain this observation. Make it clear how signal can be zero and why the distance moved is 0.75 cm.
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Card 9
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See Question 5bii) june 2013
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Card 10
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What does coherent mean?
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Card 11
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Why does amplitude decrease with distance and what is the relationship when sending a signal from a transmitter to a detector ? Refer to Question 5 June 2015 and the diagram for next 2 after.
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Card 12
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What effect on the intensity of the signal detected by a receiver when the amplitude of the waves emitted from a source is doubled.
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Card 13
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What effect on the intensity of the signal detected by a receiver when the detector is rotated 90 degrees about the axis.
