CP Ch13.5 Light Interference

How do diffraction gratings disperse white light into colors?

• By reflecting different frequencies at different angles

• By absorbing different frequencies at different rates

• By diffracting different frequencies to different extents

• By refracting different frequencies at different speeds

What causes the production of light interference fringes?

• Reflection

• Refraction

• Diffraction

• Scattering

What is interference a property of in waves, including light, and can be constructive or destructive?

• Sound waves

• Electromagnetic waves

• Water waves

• Mechanical waves

How did Thomas Young demonstrate wave interference?

• By shining light through two closely spaced side-by-side pinholes

• By reflecting light off a mirror

• By passing light through a prism

• By using a magnifying glass

What are diffraction gratings used for in spectrometers?

• To study light from glowing sources

• To generate electricity

• To measure temperature

• To analyze chemical composition

What else besides one or two slits can create interference patterns?

• Prisms

• Mirrors

• Lenses

• Diffraction grating

What causes bright and dark fringes in interference patterns?

• Different path lengths from slits to screen

• Different colors of light

• Temperature variations

• Magnetic fields