Light and Optics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | travelling oscillation of an electric and a magnetic field which are perpendicular to each other and the direction of propagation is perpendicular to both fields; generated by acceleration of electric charge
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| speed of electromagnetic wave | show 🗑
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| visible light | show 🗑
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| show | long waves > radio waves > infrared > visible light > ultraviolet > x-rays > gamma rays
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| index of refraction | show 🗑
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| show | 1.3
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| show | 1.5
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| light | show 🗑
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| show | propagation properties of light - reflection or refraction at the interference of 2 media
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| show | energy transformation properties
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| show | angle at which light ray strikes the interface, is equal to the angle of reflection (bc collision of photons against the interface is completely elastic)
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| angle of refraction | show 🗑
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| show | n1*sin(theta1) = n2*sin(theta2) where 1 and 2 specify their specific media
**angle of incidence/refraction not specified bc it makes no difference if light is moving from 1 to 2 or 2 to 1
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| show | light wants to travel btw any two points in the shortest possible path for light in terms of TIME - whichever medium that light is faster, it will want to "spend more time there" so the light will bend in the same direction in the interface
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| when light crosses into a new medium, the ____ remains the same, and the ____ changes | show 🗑
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| eqn for the energy of single photon | show 🗑
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| total internal reflection | show 🗑
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| critical angle | show 🗑
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| show | where white light (which is made up of all frequencies in the visible spectrum) is split by a prism
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| diffraction | show 🗑
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| show | bright bands
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| destructive interference with diffracted waves result in | show 🗑
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| concave mirror makes what kind of image? | show 🗑
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| convex mirror makes what kind of image? | show 🗑
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| converging lens makes what kind of image? | show 🗑
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| diverging lens makes what kind of image | show 🗑
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| objects are always positive when.. | show 🗑
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| show | they are behind a lens or mirror
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| show | wherever the eye is - focal point and images here are real and inverted
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| show | the opposite side of the eye - focal point and images are virtual and upright
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| show | P = 1/f = 1/dimage + 1/dobject
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| magnification of lens | show 🗑
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| focal point of mirror | show 🗑
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| show | M = m1*m2
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| show | Peff = P1 + P2
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| show | the single point where light from horizontal rays is reflected by concave mirrors (or refracted by converging lenses) is focused and reflected outward from convex mirrors and diverging lens
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| show | the distance that separates the mirror or lens from the focal point
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| show | the longer the wavelength, the more it is diffracted
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| show | when the path length traveled by light rays differs and creates high and low intensity bands due to constructive and destructive interference.
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| show | shorter wavelengths bend more
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| why does chromatic dispersion occur? | show 🗑
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| (chromatic disperision) longer wavelengths will have greater or smaller angles of refraction when going from medium of lower n to higher n? | show 🗑
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| show | infinite
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| show | positive
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Created by:
miniangel918
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