Back refraction 200pts A light ray in air is incident on an air to glass interface at an angle of 45 o and is refracted at an angle of 30 o to the normal. What is the index of refraction for the glass?
Special Reports 100 pts What phenomenon causes rainbows? Back
Special reports 100 pts Answer Back Total internal reflection
Back Special reports 200 pts In an optical fiber, the index of refraction of the core is ______ that of the outer layer.
Special Reports 200 pts Answer Back Greater than
Back Special Reports 300 pts Nearsightedness can be corrected by using
Special reports 300 pts Answer Back Concave lens (diverging)
Back Special Reports 400 pts What type of images are formed from the eye?
Real, inverted Special Reports 400 pts Answer Back
What causes mirages? Back Special reports 500 pts
Special Reports 500 pts Answer Back Mirages are caused from light bending as it enters an air mass of different temperatures. Light bends toward the normal as it goes from hot to cold air, and away from the normal as it goes from cold to hot air.
What color is reflected when blue, red and green light is mixed together.? Back Final Jeopardy