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P. 698

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                    Item 45 refers to the following
                    diagram which shows a
                    Geiger-muller tube.


                            w
                y                              To
                                               Amplifier
                                               and
                              x                Counter
                                       DC
                                      Supply





             45.    What are the parts labelled w, x and y?




                       w         x           y
              (A)    Cathode   Anode   Glass window
              (B)    Anode    Cathode Glass window
              (C)    Cathode   Anode    Mica window
              (D)    Anode    Cathode Mica window




















                                                      END OF TEST

                   IF YOU FINISH BEFORE TIME IS CALLED, CHECK YOUR WORK ON THIS TEST.




















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