Rachel
About
Khan Academy on a Stick
Specular and Diffuse Reflection
Specular and Diffuse Reflection
Waves and optics
Introduction to Waves
Amplitude, Period, Frequency and Wavelength of Periodic Waves
Introduction to the Doppler Effect
Doppler effect formula when source is moving away
When the source and the wave move at the same velocity
Mach Numbers
Specular and Diffuse Reflection
Specular and Diffuse Reflection 2
Refraction and Snell's Law
Refraction in Water
Snell's Law Example 1
Snell's Law Example 2
Total Internal Reflection
Virtual Image
Parabolic Mirrors and Real Images
Parabolic Mirrors 2
Convex Parabolic Mirrors
Convex Lenses
Convex Lens Examples
Doppler effect formula for observed frequency
Concave Lenses
Object Image and Focal Distance Relationship (Proof of Formula)
Object Image Height and Distance Relationship
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