light - CHRISTIAN HYUGENS (1678) Flashcards
who said that light is a series of waves in all directions?
christian hyugens
Waves are repeating disturbances that spread energy, and light travels thousands of meters and infinitely, expanding the universe.
ELEMENTS OF A WAVE
The repeating and periodic disturbance that travels through a medium (e.g. water) from one location to another location.
Wave
The highest part of a wave.
The higher the amplitude the wave does, the higher energy it carries
Wave Crest
The lowest part of a wave.
wave trough
The vertical distance between the wavelength wave trough and the wave crest.
Wave Height
The distance between two consecutive wave crests or between two consecutive wave troughs.
Wave Length
The number of waves passing a fixed point in a specified period of time.
The higher the amplitude the wave does, the higher energy it carries
Wave Frequency
The longer the wavelength, the lower the energy it carries
TRUE OR FALSE
TRUE
We can determine the amount of energy the wave carries by determining the —-?
frequency
The greater the frequency, the smaller the energy it carries
TRUE OR FALSE
false
The greater the frequency, the bigger the energy it carries
Since light behaves as a wave, it can exhibit —- and ——-.
diffraction and interference
Occurs when light passes around an obstacle or through a narrow opening, causing it to spread out or scatter.
DIFFRACTION
Occurs when light waves from different sources overlap and either reinforce or cancel each other out.
INTERFERENCE
is the phenomenon in which charged particles are released from a material when it absorbs radiant energy.
PHOTOELECTRIC EFFECT
