Refraction

What do you call the bending of light as it passes from one medium to another?

• Reflection

• Recreation

• Refraction

• Rotatiom

As a hunter you see a fish in a river. Where should you aim your spear?

• Exactly at the fish

• Below the fish

• Above the fish

• Nevermind, you will miss anyway.

What happens to the light when it travels from less dense to more dense medium?

• speed up

• slows down

• breaks

• parks

If a refracted ray moves away from the normal, the speed of light of the ray

in this material is __________ that of the incident ray.

• unrelated to

• less than

• greater than

• the same as

What is the speed of light in a diamond (n = 2.42)?

• 2.42×10⁸ m/s

• 1.24×108 m/s

• 7.26×10⁸ m/s

• 3.00×10⁸ m/s

Through which medium is the speed of light the fastest?

• air

• water

• vacuum

• glass

The velocity of light in vacuum is _______ m/s

• 3x10⁸
• 3x10¹²
• 3x10⁶
• 3x10¹⁰

How does light behave as it enters these mediums?

• continue its path as straight line.
• bends toward the normal
• bends away from the normal
• reflects

The formula to calculate the refractive index is

• n=cv
• n=v/c
• n=c/v
• v=nc

What is this called?

• refraction
• reflection
• reconstroction
• retraction