Answer the following question using the data provided. seline measurement Point

Question

Answer the following question using the data provided.

seline measurement Point near anode Point near 10 cm Fit to y- ax + b , Electron deflection two values for two polarity method) ybaselin obs Y Yobs-ybaseline 0 .ZSO 0.125 o2 Oo ud S 0132 0.0150 O56 3 7S (a) Measure the distance between the plates s5 b) Graph y vs. x2, include error bars. Measure the slope of the graph, slope -O-e3At (c) From the slope, calculate the correction factor Fo- 3. 3. Thompson's Experiment Record voltage and current for 4 settings 2.50 O.27 O.Oolus 2.00 3.00 3.50 I (A) B (T) e/m (C/kg) Sketch the path of the beam O-3 xtou

Explanation / Answer

1. maximum voltage = 3.5 k

2. KE of the electron   = 3.5 kev = 5.6e-16 J

      mass of electron mo = 9.0e-31 kg

speed of electron v = sqrt( 2*5.6e-16 /9.0e-31)

                                    = 3.94e+7 m/s

2 . speed of light = 3.0e+8 m/s

       electron speed = 0.13c

   3. v/c = 0.13

       mass od electron m = mo /sqrt(1-0.132) = 1.0086mo

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