Laws of Reflection

Laws of Reflection

Multiple Choice

When light ___ off a surface, it bounces back without passing through the surface.

• reflects

• judges

• illuminated

• bright

Multiple Choice

A __ object is something that gives off light.

• light

• transparent

• dark

• luminous

Luminous Objects

Generate their own light

Illuminated Objects

objects that are capable of reflecting light

Multiple Choice

How does light travel

• It curves around corners
• Really slow
• In a straight line
• In circles

Line of Sight

a straight line along which an observer has unobstructed vision

Multiple Choice

In the given figure , which angle represents angle of incidence ?

• a

• b

• c

• d

Multiple Choice

The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-

• absorbed
• stopped
• reflected
• refracted

Laws of Reflection

• the angle of reflection is = to the angle of incidence

• the incidence ray and reflected ray are on opposite sides of the normal line

• the incidence ray, reflected ray, and normal line all lie on the same plane

Multiple Choice

........... – the angle between the normal and the incident ray.

• Angle of incidence
• Angle of reflection
• Angle of coincidence
• Angle of direction

Multiple Choice

In the diagram, which letter represents the angle of incidence?

• A

• B

• C

• D

Keep in mind

• to view the image it must be in the line of sight

• The law of reflection is true regardless of the mirrors orientation

Multiple Choice

Which diagram represents specular reflection?

• A

• B

Multiple Choice

Best regular reflection of light takes place when it strikes

• Smooth opaque surface

• Rough opaque surface

• Smooth transparent surface

• Smooth & silvered opaque surface

Types of Reflections

• specular- smooth flat surface

• diffused- each ray is reflected off a rough surface

Multiple Choice

An image that you can see when you look into a mirror, but does not really exist is called which of the following?

• Real Image
• Fake Image
• Virtual Image
• Digital Image

Multiple Choice

An image that you can see , but does not really exist is called which of the following?

• Real Image
• Fake Image
• Virtual Image
• Digital Image

Formation of an Image

• light emanates from various directions

• some of the light rays reflect off a mirror surface due to the laws of reflection

• a flat plane mirror will produce a virtual image where the light rays extend backwards interseting at a point behind the mirror

Multiple Choice

Why do mirrors appear to flip images or letters

• apparent image reversal

• the image is reversed

• the image is magnified

• the image is flipped

Apparent Image Reversal

the image appears to flip right and left sides

Multiple Choice

Images in a plane mirror are

• real

• larger

• same size

• smaller

Multiple Choice

Zed stands 1.5-m tall in front of a plane mirror. What is the height of his image?

• 4.5 m

• 3.0 m

• 2.0 m

• 1.5 m

Multiple Choice

The size of an object and its image are the same in this type of mirror...

• Plane

• Convex

• Concave

Image

• Distance of the image to the mirror is = to the distance of the object from the mirror

• magnification of the object is 1:1 ratio