Chp 2 - Geometrical Optics Flashcards
1
Q
Light
A
Light is a form of energy that travels away from the source producing it at a speed of about 3 x 10^8 (m s^-1)
2
Q
Reflection of light
A
The bouncing of light off an object is called reflection
3
Q
State the laws of reflection of light
A
Law 1: the incident ray, the normal at the point of incidence, and the reflected ray, all lie in the same plane
Law 2: the angle of incidence is equal to the angle of reflection
4
Q
Virtual image
A
An image formed by the apparent intersection of rays
5
Q
What is parallax?
A
The apparent movement of one object relative to another due to the motion of the observer.
The object that is farthest away appears to move with the observer
