Khan Academy on a Stick
Waves and optics
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Introduction to waves
Introduction to transverse and longitudinal waves
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Amplitude, period, frequency and wavelength of periodic waves
Amplitude, period, frequency and wavelength of periodic waves
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Introduction to the doppler effect
Introduction to the Doppler Effect
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Doppler effect formula for observed frequency
Doppler effect formula for observed frequency
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Doppler effect formula when source is moving away
Doppler effect formula when source is moving away
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When the source and the wave move at the same velocity
When the source and the wave move at the same velocity
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Mach numbers
Mach numbers
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Specular and diffuse reflection
Specular and Diffuse Reflection
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Specular and diffuse reflection 2
Specular and Diffuse Reflection 2
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Refraction and Snell's law
Refraction and Snell's Law
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Refraction in water
Refraction in Water
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Snell's law example 1
Snell's Law Example 1
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Snell's law example 2
Snell's Law Example 2
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Total internal reflection
Critical incident angle and total internal reflection
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Virtual image
Virtual Image
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Parabolic mirrors and real images
Parabolic Mirrors and Real Images
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Parabolic mirrors 2
Parabolic Mirrors 2
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Convex parabolic mirrors
Convex Parabolic Mirrors
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Convex lenses
Convex Lenses
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Convex lens examples
Convex Lens Examples
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Concave lenses
Concave Lenses
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Object image and focal distance relationship (proof of formula)
Object Image and Focal Distance Relationship (Proof of Formula)
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Object image height and distance relationship
Object Image Height and Distance Relationship