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Material that doesn't let light pass through it is called an__________
Opaque material
What happens when the critical angle is equal to the incident light ray angle?
It bends toward the surface.(90 degrees)
What happens to the speed of light when when the refractive medium is less dense?
it increases.
How does light bend when it enters a denser material?
it bend closer to the normal.
What is refraction?
The change of direction of a light ray when it enters or leaves a permanent material
What is the phenomenon in the picture called and give a short explanation for it
Mirage. It happens when light passes through two layers of air with different temperatures.
Name three applications of total internal reflection.
Optical fibers, diamonds, mirage
What colors can pass through a blue filter?
Blue light mainly, a little of indigo, violet and green
Name the phenomenon occurring in the photo.
Total internal reflection
What is dispersion?
The splitting up of white light.
Explain how light travels through the image.
It is reflected through the mirrors to reach the human eye.
What is refraction?
Change of direction of a light ray when it enters or leaves a transparent material
What's the speed of light?
300,000 km/sec
Find i,r and q
i,r = 34 q =56
What is the relationship between angle of incidence and angle of reflection?
They are equal
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