Refraction

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 refractive index of any medium is always _______.

• less than 1
• greater than 1
• 1
• 0

Swimming pools and the ocean look shallower than they really are due to:

• reflection 
• dispersion
• refraction
• total internal reflection

The formula to calculate the refractive index (n) is

• n=cv
• n=v/c
• n=c/v
• v=nc

Tags

NGSS.HS-PS4-1

Glass has a _____________ index of refraction than air.

• Equal
• Greater
• Less
• Impossible to say

Light travels through a liquid at 2.25 x 10⁸ m/s. What is the refractive index of the liquid?

• 1.33
• 1.0
• 1.523
• 2.45

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

Based on their refractive indices (n), 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

• crown glass

• water
• flint glass
• barium glass

Tags

NGSS.HS-PS4-1

What is this image showing?

• Reflection
• Refraction
• The law of reflection
• Concave Mirror

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

• it is bent toward the normal.

• it always lies along the normal.

• it is unaffected.

• it is bent away from the normal.

When light passes at an angle to the normal from one medium into another 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.