UNIT 6: Description of Light as Wave

In Thomas Young's Experiment, what phenomenon or characteristic of light as wave can be demonstrated in a single aperture?

• Refraction

• Diffraction

• Interference

• Diffraction and Interference

He thought that light was a wave that was emitted by the eye, and light waves must move extremely fast because when you open your eyes, objects — even faraway objects — are immediately visible.

• Plato

• Pythagorus

• Euclid

• Aristotle

A particle hypothesis of light suggested that light particles were emitted by all objects and were intercepted by the eyes.

• Intromission Hypothesis

• Extramission Hypothesis

• Emission Hypothesis

• Intromision Hypothesis

In Thomas Young's experiment, _______& _______ are demonstrated in the screen with two aperture.

CONSTRUCTIVE INTERFERENCE

If the crests of one of the waves coincide with the crests of the other, the amplitudes are additive. If the amplitudes of both waves are equal, the resultant amplitude would decrease.

• True

• False

He not only supported the concept of light as a wave but used the wave nature of light to explain many of its properties, including refraction and polarization.

• Huygens

• Young

• Newton

• Al-Haitham

If the crests of one wave coincide with the troughs of the other wave, the resulting amplitude is decreased or may even be completely canceled.

• Constructive Interference

• Destructive Interference

• Interference

• Diffraction

He favored a corpuscular nature of light, which he also used to explain reflection and, albeit with difficulty, refraction.

• Aristotle

• Euclid

• Plato

• Newton

When the aperture is larger than the wavelength most waves pass through and little diffraction occurs and when the aperture is much smaller than the wavelength most waves are blocked.

• True

• False