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To calculate the frequency of an electromagnetic wave, you need to know the speed of the wave and its what?
Because light travels in a straight line and casts a shadow, Isaac Newton hypothesized that light is?
A stream of particles.
In order of increasing light-transmitting capabilities of materials, which is the correct sequence?
Which of the following occurs as a light wave bends when it passes from one medium into another?
What is the angle of reflection?
The angle that the reflected ray makes with a line drawn perpendicular to the reflecting surface
The law of reflection states that if the angle of incidence is 45 degrees, the angle of reflection is?
Why do plane mirrors and convex mirrors form only virtual images?
because they can not make light rays converge
Suppose a light ray traveling in air passes sideways through a glass of water and comes out the other side. How many times with the light ray refract?
4 times; through the glass, water, glass, air
Which of the following occurs as light travels farther from its source?
Far from source, photons spread over a larger area.
Newton's prism experiments showed that white sunlight is made of...?
All the colors of the visible spectrum
When droplets of water in the atmosphere act like prisms, the colors in sunlight undergo?
The speed of light in water is 2.25x10^8m/s. What is true about the index of refraction of water?
it is >1
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