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Содержание h/e Apparatus

Страница 1: ...989 PASCO scientific 5 00 h e Apparatus and h e Apparatus Accessory Kit Instruction Manual and Experiment Guide for the PASCO scientific Model AP 9368 and AP 9369 Includes Teacher s Notes and Typical...

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Страница 3: ...and Setup 3 Equipment List 3 Installing the Batteries 3 Battery Voltage Check 3 Equipment Setup 4 Using the Accessory Kit Filters 6 Experiments Experiment 1 Wave Model vs Quantum Model 7 Experiment 2...

Страница 4: ...l rights reserved However permission is granted to non profit educational institutions for reproduction of any part of the manual providing the reproductions are used only for their laboratories and a...

Страница 5: ...aratus in combination with the PASCO Mercury Vapor Light Source Model OS 9286 allows an accurate determina tion of the h e ratio and thus a determination of h Planck sconstant The emission and absorpt...

Страница 6: ...found that the kinetic energy of the photoelectrons was dependent on the wave length or frequency and independent of intensity while the magnitude of the photoelectric current or number of electrons w...

Страница 7: ...y Just remove the batteries and connect 9 V to the 6 V MIN bat tery test terminal and 9 V to the 6 V MIN bat tery test terminal Battery Voltage Check Although the h e Apparatus draws only a small amou...

Страница 8: ...Source housing 3 The Lens Grating Assembly mounts on the support bars of the Light Aperture Assembly Figure 7 Loosen the thumbscrew slip it over the bars and finger tighten the thumbscrew to hold it...

Страница 9: ...o reveal the white photodiode mask inside the Appara tus Rotate the h e Apparatus until the image of the aperture is centered on the window in the photodiode mask Then tighten the thumbscrew on the ba...

Страница 10: ...en 5 48996E 14 546 074 Blue 6 87858E 14 435 835 Violet 7 40858E 14 404 656 Ultraviolet 8 20264E 14 365 483 Color Frequency Hz Wavelength nm Figure 10 The Three Orders of Light Gradients Using the Filt...

Страница 11: ...t up the equipment as shown in the diagram below Focus the light from the Mercury Vapor Light Source onto the slot in the white reflective mask on the h e Apparatus Tilt the Light Shield of the Appara...

Страница 12: ...ches the pho todiode Record the DVM voltage reading in the table below Press the instrument discharge button release it and observe approximately how much time is re quired to return to the recorded v...

Страница 13: ...hat passing different amounts of the same colored light through the Vari able Transmission Filter has on the stopping potential and thus the maximum energy of the photoelectrons as well as the chargin...

Страница 14: ...h e Apparatus and h e Apparatus Accessory Kit 012 04049J 10 Notes...

Страница 15: ...us Tilt the Light Shield of the Apparatus out of the way to reveal the white photodiode mask inside the Apparatus Slide the Lens Grating assembly forward and back on its support rods until you achieve...

Страница 16: ...the yellow and green spectral lines 3 Move to the second order and repeat the process Record your results in the table below Analysis Determine the wavelength and frequency of each spectral line Plot...

Страница 17: ...put impedance 1013 and the output from this amplifier is connected to the output jacks on the front panel of the apparatus This high impedance unity gain Vout Vin 1 amplifier lets you measure the stop...

Страница 18: ...7 4 6 8 U1 AD549JH 3 9V PD1 VACUUM PHOTODIODE 1P39 8 4 S2 PUSH TO ZERO P3 3 J3 3 J3 4 P3 4 J3 4 P1 4 J3 4 P1 4 J3 5 P3 5 BAT 1 BAT 2 _ _ J1 5 P1 5 P2 1 J1 1 P1 1 P2 2 J2 1 J2 2 S1 ON OFF J2 5 J2 4 P2...

Страница 19: ...that the intensity of the light affects the number of elec trons emitted but not the maximum energy of the electrons 2 Different colors of light do affect the maximum energy of the photoelectrons The...

Страница 20: ...h e Apparatus and h e Apparatus Accessory Kit 012 04049J 16 Analysis First order h 6 6406E 34 0 22 off Wo 1 412 eV Second order h 6 7647E 34 2 1 off Wo 1 459 eV Exp 2 h e Apparatus and Accessory Kit...

Страница 21: ...hen calling to facilitate description of individual parts If your problem relates to the instruction manual note Part number and revision listed by month and year on the front cover Have the manual at...

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