Visible light Flashcards
What is visible light?
Visible light is part of the electromagnetic spectrum that can be seen by humans. It is a range of wavelengths that allows us to see things around us.
What is reflection?
It is the bouncing of light or change in direction of light from a surface.
Name the three characteristics of the visible light spectrum and tell if it is decreasing or increasing from left to right.
Wavelength: decreasing
Frequency: increasing
Energy: increasing
What are the colors of the Visible light spectrum?
RED, ORANGE, YELLOW, GREEN, BLUE, INDIGO, VIOLET (ROYGBIV)
What is the relationship of wavelength and frequency?
They are indirectly proportional.
What is the relationship between frequency and energy?
They are directly proportional.
What are the two types of reflection?
The amount of reflected light depends on the surface. 1. Specular (smooth surface and single direction reflection) 2. Diffuse (rough surface and has scattering or different direction reflection)
What are the 2 sources of light?
Natural and artificial.
What are the two types of objects?
Luminous and Non-luminous objects.
How do we benefit from the concept of reflection of light?
Understanding the concept of reflection of light helps us understand how the world around us works and helps us know where to apply and where this concept is applied.
What are the laws of reflection?
1.) The incident ray, reflected ray, and normal at the point of evidence all lie on the same plane.
2.) The angle of evidence is equal to the angle of reflection.
