Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
You can change this under Settings & Account at any time.
Light and Optics Introduction
Transcript of Light and Optics Introduction
reflect light into our eyes luminous objects produce light non-luminous objects reflect light shadows are places where light is blocked sources of light chemiluminescence incandescence phosphorescence electric discharge fluorescence bioluminescence chemical energy changes into light energy light is emitted because of high temperatures energy is released shortly after energy
is received from another source light is emitted because of charges
passing through a gas emits energy while receiving
energy from another source living things make themselves
glow by undergoing a reaction material types transparent transluscent opaque light passes through easily light passes through but is also reflected light light does not pass through;
light is absorbed or reflected Part 3. & Part 2: Colours white light is not a single colour... it is made up of a mixture of
the seven colours of the rainbow we can demonstrate this by
splitting white light with a prism Red Orange Yellow Green Blue Indigo Violet the colour of an object depends on the colours of light it reflects white light, containing all colours hits the object only blue light is reflected Part 4: The Electromagnetic Spectrum frequency high frequency low frequency amplitude high amplitude low amplitude the angle of incidence = the angle of reflection clear reflection smooth, shiny surfaces
have a clear reflection diffuse reflection rough, dull surfaces have
a diffuse reflection refraction: light bending when waves bend or slow down due to travelling in a different medium the media are
air and water