Physics Quiz

Refraction is the:

• bending of light rays when they pass from one medium to another

• reflection of light rays off a smooth surface

• scattering of light rays by a rough surface

• absorption of light rays by a colored object

The index of refraction is defined as:

• the speed of light in a vacuum

• the angle of incidence

• the ratio of the speed of light in a vacuum to the speed of light in a medium

• the bending of light rays when they pass through a medium

Which type of mirror can form a real, inverted image?

• convex mirror

• concave mirror

• plane mirror

• all mirrors

The human eye lens is responsible for:

• absorbing light

• reflecting light

• refracting light

• diffracting light

Additive color theory states that the primary colors of light are:

• red, green, blue

• cyan, magenta, yellow

• red, yellow, blue

• cyan, green, yellow

Which of the following is used to see objects at a distance?

• microscope

• telescope

• camera

The thin lens equation relates the object distance (do), image distance (di), and focal length (f) of a lens. Which of the following is the correct form of the equation?

• 1/f = 1/do + 1/di

• 1/f = 1/di - 1/do

• f = do + di

• f = do - di

Absorption spectra in films, chemicals, and dyes are characterized by:

• the emission of light

• the reflection of light

• the absorption of light at specific wavelengths

• the transmission of light

Which law describes the relationship between the angle of incidence and the angle of refraction?

• Hooke's law

• Newton's law

• Snell's law

• Ohm's law

What is the critical angle?

• the angle at which light is completely reflected

• the angle at which light is completely transmitted

• the angle at which polarized light is partially reflected

• the angle at which polarized light is completely transmitted