Light Behavior

The diagram above shows a light ray striking a mirror. What would be the angle between the light ray and its reflected ray?

• 80⁰

• 140⁰

• 40⁰

• 100⁰

You see this paper, your desk and the person in front of you because light is being _____.

• absorbed

• refracted

• diffracted

• reflected

_________ is produced by adding all of the wavelengths of visible light.

• black

• magenta

• white

• cyan

Malificent stands behind the focal point of a concave mirror and cackles about her evil plans to hurt princess Aurora. What type of image does she see when she looks in the mirror?

• upright, bigger

• upright, smaller

• inverted, bigger

• inverted, smaller

A student collects the following refraction data when light enters a rectangular acrylic plate (n= 1.50) from air (n = 1).

The experimental setup is shown to the right of the table. Which of these statements below best summarizes his findings?

• When light enters an optically more dense medium, the light is bent toward normal.

• When light enters an optically more dense medium, it is bent away from normal.

• When light leaves an optically more dense medium, it is bent towards normal.

• Light does not bend as a result of entering or leaving a new medium.

If light waves change speed when they pass from one medium into another, the light will be _____

• diffracted

• reflected

• refracted

• separated

Light passes through a filter and vibrates on one plane is ____.

• incoherent light

• polarized light

• fluorescent light

• diffused light

The bending of waves around the edge of a barrier is called ___.

• diffraction

• refraction

• reflection

• dispersion

When a ray approaches the boundary between two materials at the critical angle, ___ is produced

• total internal reflection

• a rainbow

• another ray

• a mirage

Which statement best explains the difference between light travelling through a vacuum and light waves traveling through a medium?

• Light waves traveling through a vacuum are transverse, but light waves traveling through a medium are longitudinal.

• Light waves traveling through a vacuum travel faster than light waves traveling through a medium.

• Light waves traveling through a vacuum have no mass, but light waves traveling through a medium have a mass greater than zero.

• Light waves traveling through a vacuum have a shorter wavelength than light waves traveling through a medium.