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17 Cards in this Set
- Front
- Back
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3 * 10^8 m/s is the speed is what in what medium? |
It is the speed of light in a vacuum and air. |
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What is the formula for the refractive index of a medium? |
speed of light/speed of light in that medium = refractive index of a medium c/v=n |
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What is the formula for reflection of light? |
Initial angle = reflective angle θi = θr |
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n1sinθ1 = n2sinθ2 is what law? |
Snell's law |
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What does a convex mirror do? |
It makes things smaller and is thick in the middle |
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What is a concave mirror? |
It makes things larger that is thin in the middle. |
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What is the drawing for image formation? |
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What is do and di? |
do is the object distance. di is the image distance. Both are on either side of the focal point (x) at the center of the lens. |
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What is the lens equation? |
1/do + 1/di = 1/f |
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What is the formula for magnification? |
m = hi/ho = -di/do |
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What is hi and ho? |
hi is the image height. ho is the object height. |
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What is a real image? |
An image that can be caught on a screen. |
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What is it called if the image is too close to the lens that can't be caught. |
It is a virtual image. |
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f = 8cm do = +24cm
a. What is di? b. Is it real or virtual, straight or inverted? |
a. 1/di + 1/+24 = 1/8 m = -di/do b. Image is real, inverted, and diminished. |
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What is the formula for velocity of light? |
V = fλ |
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What makes an image straight up? What makes an image inverted? |
A positive magnitude means straight up, a negative magnitude means inverted. |
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What is Snell's Law applied to? |
Refraction of light. |
