4th Weekly Assessment in Physical Science

He proposed that light consists of a stream of small particles, because it travels in straight lines at great speeds and is reflected from mirrors in a predictable way.

Who is the English physicist believed that light was composed of waves.

A French scientist  proposed that all matter and radiation have properties that resemble both a particle and a wave.

He postulated that light might actually have some particle characteristics, regardless of the overwhelming evidence for a wave-like nature.

According to this scientist, a small portion of each angled wave front should impact the second medium before the rest of the front reaches the interface.

It occurs when a transparent object allows light to pass through it.

It is a light phenomenon that happens when light shines through clouds that are composed of ice crystals.

When light interacts with atoms and molecules, they act like a stream of energy called photons or quanta. 

In 1900, Max Planck was able to explain the spectrum of a “blackbody” radiator by assuming that light energy is quantized.

Constructive interference happens when two opposite parts of two waves meet for example a crest of one wave meets the trough of another wave which would result in the cancellation of the two waves.

When you try to look into the front part of the spoon, you will see a smaller and enlarge version of yourself.

Destructive interference happens when two identical parts of two waves meet such as a crest of one wave meets the crest of another wave of the same wavelength.

Primary rainbow is formed when light hits a raindrop, refracted and single reflection happens inside the raindrop.

Secondary rainbows are formed when light strikes small raindrops with almost the same size.

It is an optical phenomenon which creates a displaced image of an object due to refraction of light.