Super Duper Snell

The formula to calculate the refractive index of a material is.......

Glass has a _____________ index of refraction than air.

• Equal
• Greater
• Less
• Impossible to say

Light has the lowest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45

• diamond
• water
• flint glass
• barium glass

Light has the highest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45

• diamond
• water
• flint glass
• barium glass

When light passes at an angle to the normal from one material into another material in which its speed is lower

• it is bent towards the normal.
• it always lies along the normal.
• it is unaffected.
• it is bent away from the normal.

Based on the image, which medium has a larger index of refraction?

• Medium 1 has a larger index of refraction.

• Medium 2 has a larger index of refraction.

• Both mediums have the same index of refraction.

• Cannot be determined.

Based on the image, as light passes from medium 1 to medium 2

• light speeds up and bends towards the normal

• light speeds up and bends away from the normal

• light slows down and bends towards the normal

• light slows down and bends away from the normal

What letter is used to represent refractive index?

• c

• n

• v

• θ

What is a line drawn at 90° to a surface called?

• incident ray

• normal line

• refracted ray

• tangent

What causes refraction?

• A change in frequency of a wave.

• A change in amplitude of a wave

• A change in speed of a wave.

• A change in phase of a wave.