10A Superposition

10.1 INTERFERENCE
10.1.1 Principle of Superposition | ðŸŽ§
10.1.2 Phase Difference | ðŸŽ§
10.1.3 Path Difference | ðŸŽ§

10.2 RIPPLE TANK
10.2.1 Two-Source Interference Pattern | ðŸŽ§
10.2.2 Necessary Conditions for Interference | ðŸŽ§

10.3 DOUBLE SLIT
10.3.1 Double Slit Interference Pattern | ðŸŽ§
10.3.2 Derivation of the dsinθ Formula | ðŸŽ§
10.3.3 Derivation of the Lλ/d Formula | ðŸŽ§
10.3.4 Young’s Double Slit Experimental Set-up | ðŸŽ§

10.4 DIFFRACTION GRATING
10.4.1 N-slit Interference Pattern (Beyond the Syllabus) | ðŸŽ§
10.4.2 Diffraction Grating Interference Pattern | ðŸŽ§
10.4.3 White Light Interference Pattern | ðŸŽ§

10.5 SINGLE-SLIT
10.5.1 Single-Slit Interference Pattern | ðŸŽ§
10.5.2 Derivation of the bsinθ Formula (Beyond the Syllabus) | ðŸŽ§
10.5.3 Diffraction | ðŸŽ§
10.5.4 Diffraction Envelope | ðŸŽ§
10.5.5 Rayleigh’s Criterion | ðŸŽ§

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Demonstrations: Click here

Explanation Videos: Click here

Animations: Click here

Applet:
Interference
Superposition of 2 Pulses (Tom Walsh)

Two source Interference
Superposition of 2 Sinusoidal Waves (Chua Kah Hean)
Path Difference (Chua Kah Hean)
https://ngsir.netfirms.com/englishhtm/Interference.htm
https://ngsir.netfirms.com/englishhtm/Interference2.htm
https://www.walter-fendt.de/html5/phen/interference_en.htm

Double Slit
Parallel rays (Chua Kah Hean)
https://www.walter-fendt.de/html5/phen/doubleslit_en.htm
Double Slit (Tom Walsh)

Grating
http://ngsir.netfirms.com/englishhtm/MultipleSources.htm
Tom Walsh
Massimiliano Malgieri (intensity profile)
sciwithmrb (white light)

Single Slit
https://www.walter-fendt.de/html5/phen/singleslit_en.htm
Sam Edgecombe

Diffraction
Superposition of N Sinusoidal Waves
Slit: http://ngsir.netfirms.com/englishhtm/Diffraction.htm
Obstacle: http://ngsir.netfirms.com/englishhtm/Diffraction2.htm
Corner: http://ngsir.netfirms.com/englishhtm/Diffraction3.htm

Diffraction Envelope
https://groups.physics.northwestern.edu/vpl/optics/diffraction.html
Ray Luck Geogebra

Rayleigh’s Criterion
https://www.compadre.org/osp/items/detail.cfm?ID=8198
https://www.geogebra.org/m/wtunpcmz (xmphysics geogebra)