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Wednesday, 04 June 2014 15:52
P3-25: CATHODE RAY TUBE - CONCAVE CATHODE
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Additional Info
ID Code:
p3-25
Purpose:
Show what happens in a discharge tube as the pressure is changed.
Description:
Turn the pump on and off for brief periods to vary the pressure while observing the effect on the discharge. A gauge on the pump reads the pressure.
Availability:
Available
References:
REFERENCES: (PIRA unknown.)
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Last modified on Monday, 17 August 2020 11:31
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Published in
P3 Atoms and Molecules
Tagged under
Atomic Physics
More in this category:
« P3-24: CATHODE RAY TUBES - MISCELLANEOUS
P3-31: X-RAY TUBE »
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A General Materials and Mathematics
A1 Basic Materials and Measurement
A2 Mathematics
B Statics
B1 Center of Mass Statics
B2 Equilibrium of Forces and Torques
B3 Simple Machines
B4 Elasticity
C Kinematics and Dynamics
C1 Center of Mass Motion
C2 Kinematics in One and Two Dimensions
C3 First Law of Motion
C4 Second Law of Motion
C5 Third Law of Motion
C6 Friction
C7 Collisions
C8 Mechanical Energy and Power
D Rotational Mechanics
D1 Rotational Kinematics and Dynamics
D2 Moment of Inertia
D3 Angular Momentum
D4 Gyroscopes
D5 Rotational Esoterica
E Gravitation and Astronomy
E1 Gravitation and Orbits
E2 Astronomy
F Fluid Mechanics
F1 Pressure in Static Fluids
F2 Buoyancy
F3 Surface Tension
F4 Fluid in Motion
F5 Forces in Moving Fluids
G Vibrations and Mechanical Waves
G1 Simple Harmonic Motion
G2 Resonance and Coupled Oscillations
G3 Mechanical Waves - One Dimensional
G4 Mechanical Waves - Two Dimensional
H Sound
H1 Nature of Sound
H2 Wave Properties of Sound
H3 Standing Sound Waves
H4 Music
H5 The Ear
H6 The Voice
I Thermodynamics
I1 Thermal Properties of Matter
I2 Transfer of Heat
I3 Gases
I4 Changes of State
I5 Laws of Thermodynamics
I6 Kinetic Theory and Statistical Mechanics
I7 Solid State and Low Temperature Physics
J Electostatics and Magnetostatics
J1 Electrostatic Charge and Force
J2 Electrostatic Devices and Applications
J3 Electric FIelds and Potential
J4 Capacitance and Polarization
J5 Magnetostatics
J6 Electromagnets
J7 Magnetic Materials
K Electromagnetic Principles
K1 Forces on Moving Charges
K2 Electromagnetic Induction
K3 Transformers
K4 Motors and Generators
K5 Electrical Properties of Matter
K6 Electric Circuits and Instruments
K7 RLC Circuits
K8 Electromagnetic Waves and Sources
L Geometrical Optics
L1 Light Sources and Light Rays
L2 Plane Mirrors
L3 Curved Mirrors
L4 Refraction
L5 Total Internal Reflection
L6 Lenses
L7 Optical Instruments
M Wave Optics
M1 Interference and Diffraction - Slits and Gratings
M2 Diffraction - Circular
M3 Interferometers
M4 Thin Film Interference
M5 Interference and Diffraction Esoterica
M6 Holograms
M7 Linear Polarization and Scattering
M8 Optical Activity and Birefringence
M9 Circular Polarization
N Spectra and Color
N1 Continuous Spectra
N2 Line Spectra
N3 Color
O Vision
O1 Image Production
O2 Visual Latency
O3 Color Vision
O4 Optical Illusions
P Modern Physics
P1 Relativity
P2 Quantum Mechanics
P3 Atoms and Molecules
P4 Nuclei and Particles
Q Biophysics
Q1 Musculoskeletal Systems
Q2 Organs
Q3 Genetics and Molecular Biology
P3-01: PERIODIC CHART
Provide a large scale periodic chart.
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P3-02: ATOMIC ELECTRON ORBITAL MODELS
Illustrate electron orbitals for simple electron states.
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P3-11: LANGMUIR EXPERIMENT
Demonstrate a monomolecular layer of oleic acid molecules held together by surface tension, and to experimentally determine the length of
…
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P3-21: CATHODE RAY TUBE - SHADOW EFFECT - MALTESE CROSS
Demonstrate the shadow effect for electrons.
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P3-22: CATHODE RAY TUBE - CANAL RAYS
Demonstrate canal rays present in a cathode ray tube.
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P3-23: CATHODE RAY TUBE - FLUORESCENCE EFFECT
Demonstrate fluorescence in a cathode ray tube.
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P3-24: CATHODE RAY TUBES - MISCELLANEOUS
Illustrate various types of discharge tubes.
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P3-25: CATHODE RAY TUBE - CONCAVE CATHODE
Show what happens in a discharge tube as the pressure is changed.
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P3-31: X-RAY TUBE
Classic x-ray tube.
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P3-41: FRANCK-HERTZ EXPERIMENT
Demonstrate that the bound electrons in an atom can only occupy discrete energy levels, by determining the quantum of energy
…
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P3-51 BALMER SERIES
Observe the Balmer series in hydrogen
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P3-52: RESONANCE RADIATION
Show resonance radiation of iodine.
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P3-53: ATOMIC ENERGY LEVEL MODEL
Model of energy levels in the atom.
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P3-54: ENERGY LEVELS - BALLS AND LADDER
Model energy levels in atomic orbits.
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P3-61: FLUORESCENT LIQUIDS
Show fluorescence of different chemicals.
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P3-62: FLUORESCENT CHALK
Demonstrate fluorescence in different materials.
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P3-63: WAVE LENGTH SHIFTER BAR
Demonstrate how a wave length shifter bar absorbs photons and re-emits the energy at its characteristic wavelength.
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P3-64: PHOSPHORESCENCE - BLACK LIGHT AND OSCILLOSCOPE CRT
Demonstrate phosphorescence.
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P3-65: WINTERGREEN MINTS
Demonstrate that breaking wintergreen mints creates small flashes of light.
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P3-66: FLUORESENCE AT LN TEMPERATURE
Demonstrate fluorescence of a normal material at LN temperature.
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P3-67: FLUORESCENCE OF LAUNDRY SOAP
Demonstrate that laundry soap is fluorescent.
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P3-71: VISIBLE LASER
See the inside of a laser, observe the spectrum of light
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