Transcript Document

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Week 1
1
Module 4: Lab 1 Objectives
• To discover how light spreads out from a point source
• To examine quantitatively how the intensity of light
varies with distance from a point source
• To discover how light rays can be used to represent
light as it spreads out from a point source
• To discover the origin of parallel rays of light
• To examine how we are able to see objects--how the
light from objects reaches our eyes
• To compare the light from point and extended sources
• To observe qualitatively the interaction of light with the
surface of a transparent object
Week 1
2
QuickTime™ and a
TIFF (Uncompressed) decompressor
are needed to see this picture.
Week 1
3
Jeff Goldblum is checking his reflection in a mirror.
How much of himself can he see in the mirror?
Week 1
4
Jeff Goldblum is checking his reflection in a mirror.
How much of himself can he see in the mirror?
Week 1
5
Two plane mirrors form a right angle. How many images
of the ball can you see in the mirrors?
Week 1
6
Week 1
7
Light from a laser is shone into a
fish tank at an angle of i=30o.
Neglecting the glass, at what
angle will the light travel through
the water?
Week 1
8
Week 1
9
QuickTime™ and a
TIFF (Uncompressed) decompressor
are needed to see this picture.
Week 1
10
1. The figure shows an
object O in front of a
plane mirror. Use ray
tracing to determine
from which locations AD the object's image is
visible.
QuickTime™ and a
TIFF (Uncompressed) decompressor
are needed to see this picture.
2. A ray of light traveling through air encounters a 1.2
cm thick sheet of glass at a 45o angle of incidence.
How far does the light ray travel inside the glass before
emerging on the far side?
Week 1
11