Log 6 - Nature of Light

Question 1

__________ is based upon physical and phychological concepts. It is a form of radiant energy that produces visual sensations when stimulating the retina.

Answer 1

Light

Question 2

Earliest theory of light is ____________ theory.

Answer 2

Corpuscular

Question 3

In 1666 _____________ (man) is a supporter of the corpuscular theory of light

Answer 3

Sir Isaac Newton

Question 4

Define dispersion

Answer 4

The separation of white light into its component colors.

Question 5

The speed of light is ________ when entering the eye, they are absorbed which produces vision .

Answer 5

finite (about 186,000 miles per second)

Question 6

_________Theory of light proposed in 1690 by Christian Huygens that states that light travels through space in ______. Space is filled with ether that permeates all matter.

Answer 6

Wave Theory
waves

Question 7

Label the four properties of wave length theory

Answer 7

Question 8

___________ occurs when light passes through a small hole, it spreads out and bends around the edges of the hole.

Answer 8

Diffraction

Question 9

___________ refers to the modification of light intensity due to the combination of two or more light waves.

Answer 9

Interference

Question 10

__________________ theory of light was developed in 1864 by Clerk Maxwell, and states that light consists of alternating ____________ waves.

Answer 10

Electromagnetic

Question 11

__________ theory states that light consists of bundles of energy called quanta.

Answer 11

Quantum

Question 12

Two waves that enhance one another

Answer 12

inphase

Question 13

The ratio between the speed of light in air (or vacuum) and the speed of light in a new substance

Answer 13

index of refraction

Question 14

An array of waves arranged according to frequency and length

Answer 14

Spectrum

Question 15

The rebounding of light off a surface

Answer 15

Reflection