Thin Film Optics

When does a phase change occur in light reflection?

• None of the above

• Both of the above

• When light is reflected from a more dense material

• When light is reflected from a less dense material

What causes the spectrum seen when petrol or oil is spilled on the ground?

• Reflection from the top and bottom surface of the thin film of oil

• Refraction from the top and bottom surface of the thin film of oil

• Diffraction from the top and bottom surface of the thin film of oil

• None of the above

Tags

NGSS.HS-PS4-5

What determines the different colors produced by the thin film of oil?

• The density of the oil

• The thickness of the thin film

• The temperature of the oil

• The viscosity of the oil

Tags

NGSS.HS-PS4-1

What is the result of the superposition of the incident wave and the reflected wave?

• Constructive interference

• Destructive interference

• Both constructive and destructive interference

• No interference

Tags

NGSS.HS-PS4-5

What is a good example of a stationary wave?

• A vibrating phone

• A blowing wind

• A running river

• A plucked guitar string

Tags

NGSS.HS-PS4-1