Refraction

The velocity of light in vacuum is _______ m/s

• 3x10⁸
• 3x10¹²
• 3x10⁶
• 3x10¹⁰

Tags

NGSS.HS-PS4-1

Glass has a _____________ index of refraction than air.

• Equal
• Greater
• Less
• Impossible to say

Tags

NGSS.MS-PS4-2

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

Tags

NGSS.HS-PS4-1

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

Tags

NGSS.HS-PS4-1

If a pulse of red light and a pulse of blue light travel in vacuum

• The red pulse travels faster because its index of refraction is smaller
• The blue pulse travels faster
• The two pulses travel at the same speed
• The relative speed depends on the exact wavelengths of the red and blue pulses

Tags

NGSS.HS-PS4-1

This shows the phenomenon known as....

• reflection
• refraction
• mirrors
• focal point

Tags

NGSS.MS-PS4-2

The formula to calculate the refractive index is

• n=cv
• n=v/c
• n=c/v
• v=nc

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.

Tags

NGSS.MS-PS4-2

Which color of light is most refracted during dispersion by a prism?

• red
• yellow
• green
• violet

In what medium does light travel the fastest?

• vacuum
• air
• water
• glass

Tags

NGSS.HS-PS4-1