5_ch01_SQ_e.pdf - Radiation 1 Solutions(a radiation is deflected into the paper Marks 1A radiation is deflected out of the paper 1A radiation passes

5_ch01_SQ_e.pdf - Radiation 1 Solutions(a radiation is...

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Radiation 1 1 Solutions Marks (a) radiation is deflected into the paper. 1A radiation is deflected out of the paper. 1A radiation passes straight through. 1A (b) radiation is deflected upwards. 1A radiation is deflected downwards. 1A radiation passes straight through. 1A 2 Solutions Marks (a) X-rays 1A (b) X-rays can penetrate flesh but not bone. 1A The other two do not have this property. (c) Living cells may be damaged. 1A (d) Examine luggage. (Or other reasonable answers) 1A 3 Solutions Marks (a) The material is radioactive. 1A (b) Lead 1A (c) Handle it with forceps or special lifting tools. Point it away from the human body, especially the eyes. 1A 1A 4 Solutions Marks Measure the count rate due to the background radiation. 1A Put the 'bulb' close to the G-M tube and measure the count rate. 1A The difference between the two count rates above gives the count rate due to the bulb. 1A
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