Light Colors And Reflection Flashcards
What colours are visible in the electromagnetic spectrum
Red orange yellow green blue indigo violet
3 types of rays before visible on electromagnetic spectrum
Infrared micro wave radio wave
3 rays on the right to electromagnetic spectrum
Ultra violet x-rays gamma rays
If the wavelength is short what is the frequency
High
If something has low frequency what type of wavelength does it have
Longer
What is incandescent and give an example
Light made from heat candle
phosphorescent give example
Glow in the dark objects
Example of electric discharge
Streetlights
Fluorescence example
Fluorescent light bulbs
Chemiluminescence example
Glow sticks
What is the incident ray
The ray that was shinned into the mirror
What is the reflected ray
The reflection of the incident ray
State 2 laws reflection
The incident ray reflected ray and the normal all lie on the same plane
The angle of reflection is equal to the angle of incidence
Additive colours are what
Red green and blue light
Subtractive colours are what
Cyan yellow magenta pigment
What is the principal axis
The perpendicular line that shines back on its self in the centre of the mirror
What is c
The centre of curvature
What is the vertex
Where the principal axis meets the mirror
What is the focal point
Where all light rays parallel to the pa reflect
What is focal distance
The distance between the focal point and the mirror
What is the radius of curvature
The distance from the mirror to c
What is a concave mirror and example
Concave mirrors cave in at the centre
Make up mirror
What is a convex mirror and example
Convex mirrors bulge out in the centre
Spoons
What are the characteristics of reflected images
Size orientation location type
What are the types of images
Real and virtual
What is the formula to find the image distance
1/f = 1/di + 1/do
What is the formula for image height
Hi/ho = -di/do
