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29 Cards in this Set
- Front
- Back
As you increase frequency what happens to wavelength and energy?
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The wavelength decreases and energy increases
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The wavelength of ROYGBIV goes from what wavelength to what wavelength
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R-700nm
V-400nm |
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When an electromagnetic radiation interacts with matter it carries energy, what is the equation to find the energy?
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E= plancks constant *f
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Electromagnetic radiation travels as___________ but intercts as ______
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Wave
Particle |
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When finding the angle in the light reflection, what angle should you always use?
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The angle which is to the normal of the surface
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If angle of incidence is 0, what is angle of refraction
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0
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What is the index of refraction equation
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n= speed of light/speed in medium
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Does light travel faster or slower in a greater index of refraction?
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Slower
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If n2 is greater than n1, will it bend towards or away from normal
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Towards normal
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What situation can you see total internal reflection
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When n1 > n2
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What is the equation to find total internal reflections
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Sin(theta critical) = n2/n1
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The focal length is halfway between what?
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The center of curvature and the mirror
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What is the distance between mirror and center of curvature called?
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Radius of curvature
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If given the radius of curvature, what is the equation to determine the focal length?
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focal length equals 1/2*r
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A positive i tells you what about the image
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Its real, in front of mirror, and its inverted
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What is the equation for magnification?
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m= -i/o
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What does a -i tell you
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You have a virtual, upright, and behind mirror
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If using a convex mirror is the focal length positive or negative?
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negative
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If magnification is negative, is the image upright or inverted?
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Inverted
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What is a concave lens and what is focal length (positive or negative)
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concave is diverging lens and focal length is -
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What is a convex lens and what is focal length (positive or negative)
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Convex is converging lens and f is positive
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In lenses are images virtual if formed on same side as lens
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Yes
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If i is positive in lens what can this tell you
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It is a real image formed on other side of lense
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If i is negative in lens what can this tell you
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This is a virtual image found on same side of lens
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What is the equation for lens power and what units must focal length be in?
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Power=1/f
focal length must be units of meters |
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What is myopia and what can't myopia patients do?
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Myopia patients can't focus on distant images and myopia means nearsightedness
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What is hyperopia and what can't hyperopia patients do?
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Hyperopia is farsightedness and they can't focus on close objects
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What is used to correct myopia
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The divergivng(concave lens) are used to fix myopia
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What is used to correct hyperopia
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The converging lens are used
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