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- Give an example of a physical entity that is quantized. State specifically what the entity is and what the limits are on its values.Explain why characteristic x rays are the most energetic in the EM emission spectrum of a given element.What is the difference between fluorescence and phosphorescence?
- 0O REDMI NOTE 9 PRO MAX O AI QUAD CAMERA The average thermal velocit Yofelectrons at T- Fook equalsVm005 (b) VOS (6) Vme (d) Vm I (s) vitamikorgqs to muminima a 6 iliw Sysw diootwse AS no mo lyd beinast ei wrait terW LABORATORY 38 Oscilloscope Measurements PRE-LABORATORY ASSIGNMENT 1. Describe the components that make up the electron gun in a cathode-ray tube. 2. Describe the voltage waveform that produces a linear time scale when applied to the horizontal plates of a cathode-ray tube. 3. When the electron beam strikes the fluorescent screen, the phosphor glow that results has persistence. Approximately how long does the glow persist? 4. A function generator outputs a sine wave of f= 200 Hz. It is input to an oscilloscope set at 1 ms/DIV. How many complete cycles of the sine wave are displayed on the oscilloscope? (Hint-The period of the sine wave T is related to the frequency f of the wave by T = 1/f, and there are 10 divisions on the time display of the oscilloscope.)09:0 Coran. S COMUZ ***780 20 DO 2DS, VUR "NPTC/ * *gin |
- False A Si photo-detector has a length of L= 10 um and a hole lifetime of t, =1x 10° s. If a voltage of 5 V is applied across the detector length, the detector gain "G" at the applied voltage will be: %3D Select one: O A. Gph = 2.925 B. Gph = 25.000 C. Gph = 4.000 %3! D. Gph = 10.000 %3D E. Gph = 1.250problem 204 100Mer lom. 9 Viaitial paket He Spread A beam distancé electrons travels wi width Ax in this that this than on. is 10em Calcilate Spreed paket in tåelling wave Show less distance and is much SpreadIntegrated ConceptsA carbon dioxide laser used in surgery emits infrared radiation with a wavelength of 10.6 μm . In 1.00 ms, this laser raised the temperature of 1.00cm3 of flesh to 100oC and evaporated it. What was the minimum power output during the flash?
- QUESTION 12 An x-ray unit is aperated with single phase voltage at 90 kVp. 1.000 mA tube current for 100 ms What is the power rating? Give your answer to the nearest kloWat.Cale ulote the shortest wavelenght of X-rays produced in the Bremsstrahlung process, in which electrons accelerate under 2.5x10 V in nm. voltage,The effective bandwidth of Hollow cathode lamp emission lines is smaller than that absorption lines by atoms in flame because a. In the flame, molecules move faster producing a wider bandwidth. b. The pressure is low in the HC lamp as a result more natural uncertainty broadening. c. In the HC lamp, the temperature is low so that the Doppler Effect is high causing more broadening. d. In flame, the gas temperature is high so that the collision is higher and resulting more broadening.