a = 234 + 4 = 238
b = 92 - 2 = 90.
johnmulu answered the question on June 6, 2017 at 09:09
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The following represents a nuclear reaction involving the nuclide polonium Po.
Identify m, n and X
Date posted: June 6, 2017. Answers (1)
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Figure 4 shows the cross-section of a diffusion cloud chamber used to detect radiation from radioctive sources.
(i) State one function of each of the following:
Alcohol
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)
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(ii) Give a reason for your answer in (i) above.
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)
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(Solved)
In an experiment on photo-electricity using metal X, the graph shown in Fig.9 was obtained. Use the graph to answer the question.
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Date posted: June 6, 2017. Answers (1)
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Figure 5 shows a narrow beam of x-rays passing between two metal plates in air. The plates are connected in series with a switch, a cell and a milliammeter
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)
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(ii) state how electron beam is detected.
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)
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Date posted: June 6, 2017. Answers (1)