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An X-ray tube is operated at `50 kV and 20 m A`. The target material of the tube has mass of `1 kg` and specific heat `495 J kg ^(-1) `^(@)C^(-1)`. One perent of applied electric power is converted into X-rays and the remaining energy goes into heating the target. Then,A. a suitable target metrial must have hight melting temprature.B. a suitable target metrial must have low thermal conductivity.C. the average rate of rice of temprature of the target would be `2 ^(@) C s^(-1)`D. the minimum wavelength of X-rays emitted is about `0.25 xx 10^(-10) m` |
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Answer» Correct Answer - A::C Power loss increases the temprature. |
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