Light and Optics 20

What are the primary colors of paints and ink?

• Blue

• Cyan

• Yellow

• Red

• Magenta

Which of these devices use lenses?

(Select all that apply)

• Glasses

• Telescope

• Microscope

• Binoculars

The image produced in a plane mirror will always be...

• virtual

• real

the image will appear...

• magnified

• nowhere,because the rays do not meet at a point

• virtual

• upright

• all of the above

Which of the following describes what will happen to a light ray incident on an glass-to-air boundary at an angle of incidence greater than the critical angle?

• total internal reflection

• total transmission

• partial reflection, partial transmission

• partial reflection, total transmission

When the particles of a medium are vibrating at right angles to the direction of energy transport, then the wave is a ____ wave

• longitudinal

• sound

• standing

• transverse

Which wave behavior occurs on a mirror?

• Reflection

• Diffraction

• Refraction

• Interference

• Transmission

If the particles of the medium are vibrating to and fro in the same direction of energy transport, then the wave is a ____ wave.

• transverse

• standing

• sound

• longitudinal

This optical device is a:

• Concave

  Lens

• Convex

  Lens

• Concave

  Mirror

• Convex

  Mirror

Which form of light travels the fastest?

• Radio
• Infrared
• Gamma
• All travel the same speed