Flashcards in Chapter 4.3 - Light Deck (15):
An object that releases or emits light
What is the name given to objects that do not produce their own lights
Non - Luminous
Define refractive index
Is the measure of how easily light travels through a substance.
Light bouncing off an object
Define the law of reflection
The angle the incident ray hits a surface is the same angle as the reflected ray leaves the surface.
What is the equation for the law of reflection
angle of incidence (i) = angle of reflection (r)
What is regular reflection
reflection from a very smooth surface ( forms a clear sharp image)
What is diffuse reflection
occurs from rough surfaces and no clear image is formed (example think of a choppy lake cant see reflection of mountains as surface is rough)
What is another name for a flat mirror
What is lateral inversion
your reflection in the mirror - sides are reversed
What is a concave lens what type of image does it produce
a lens that curves inwards. Produces a upright smaller virtual image
What is a convex lens and what type of image does it produce
a lens that bulges outwards. Produces an upright and enlarged virtual image.
Draw a figure showing the law of reflection
with the following labelled: mirror, incident ray, angle of incidence, normal, angle of reflection and the reflected ray.
List the 5 properties of an image seen in a plane mirror
Upright, same size as object, is laterally inverted (flipped sideways), is virtual and appears to be located as far inside the mirror as the object is infront.