Test: Reflection and Refraction

A ray of white light passes through a prism.  On the other side of the prism, you see a rainbow.  What is this phenomenon called?

• Reflection
• Refraction
• Medium
• Dispersion

Velocity of light ______ when it passes from a medium with a high index of refraction to an area with a lower index of refraction.

• decreases

• increases

• does not change

Every convex mirror causes the light rays to:

• converge

• diverge

• form a real image

• refract

Magnification produced by a concave lens is always ______

• greater than 1

• positive but less then 1

• = 1

• negative

The index of refraction is greatest for ________.

• water

• diamond

• glass

• mercury

The index of refraction is least for ________.

• air

• diamond

• vacuum

• water

The velocity of light in vacuum is _______ m/s

• 3x10⁸
• 3x10¹²
• 3x10⁶
• 3x10¹⁰

Tags

NGSS.HS-PS4-1

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 index of refraction of any medium (not a vacuum) is always _______.

• less than 1

• greater than 1

• 1

• 0

The formula to calculate the refractive index is

• n=cv
• n=v/c
• n=c/v
• v=nc