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AQA A-LEVEL PHYSICS [ALL PAPERS] QUESTIONS & MARKING SCHEME MERGED
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7

March 2024
Section A box Answer all questions in this section. 0 1 A stroboscope emits bright flashes of white light. The duration of each flash and the frequency of the flashes can be varied. Table 1 shows information about the stroboscope. Table 1 Minimum Maximum Duration of each flash / μs 60 300 Frequency of flashes / Hz 1 150 The duration of each flash i
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Exam (elaborations)

AQA A-LEVEL PHYSICS Paper 3 7408/3BE [Electronics]QUESTIONS & MARKING SCHEME MERGED
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36

March 2024

2023/2024

A+
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Section B box Answer all questions in this section. 0 1 Figure 1 shows the input and output pins for a 4-bit binary counter. The output pin for the least significant bit is A. Figure 1 0 1 . 1 Complete Figure 1 by adding a single logic gate to the binary counter so that the circuit functions as a modulo-6 counter. [2 marks] Figure 2 shows three outputs of the modulo-6 counter connected to a logic sub-system that controls a 7-segment display. The decimal point on the display is not show...
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