| A | B |
|---|
| In a laser, all of the following forms of energy can be converted into coherent light except | nuclear energy |
| Refraction is the bending of a wave disturbance as it passes at an angle from one _____ into another. | medium |
| A laser can be used | to measure distance, to read bar codes, to treat glaucoma, all of these. |
| Which is not correct when describing the formation of rainbows? | All wavelengths refract at the same angle. |
| When a light ray passes from zircon (n=1.923) into fluorite (n=1.434) at an angle of 60° , its paths is | bent away from the normal |
| Part of a pencil that is placed in a glass of water appears bent in relation to the part of the pencil that extends out of the water. What is this phenomenon called? | refraction |
| The focal length for a diverging lens is | always negative |
| What type of image does a converging lens produce? | real or virtual |
| When a light ray moves from air into glass, which has a higher index of refraction , its path is | bent toward the normal |
| A lapidary cuts a diamond so that the light will refract at an angle of 17.0° to the normal. What is the index of refraction of the diamond when the angle of incidence is 45.0°? | 2.42 |
