Light Reflection Basics

What is the law of reflection?

• Angle of reflection is always less than angle of incidence

• Angle of reflection is always greater than angle of incidence

• Angle of reflection is perpendicular to angle of incidence

• Angle of incidence equals angle of reflection

Define angle of incidence.

• The angle between the incident ray and the reflected ray

• The angle between the normal and the surface

• The angle of incidence is the angle between the incident ray and the normal to the surface at the point of incidence.

• The angle between the reflected ray and the normal

Explain the concept of a plane mirror.

• A plane mirror distorts the reflection of light.

• A plane mirror absorbs light instead of reflecting it.

• A plane mirror is a concave reflective surface.

• A plane mirror is a flat reflective surface that reflects light without scattering it.

How does light behave when it hits a plane mirror?

• The light ray passes through the mirror

• The light ray disappears upon hitting the mirror

• The light ray bounces off the mirror at the same angle it hit the mirror.

• The light ray splits into multiple rays

What is the angle of reflection?

• Angle of reflection is always 90 degrees

• Angle of reflection is greater than the angle of incidence

• Angle of reflection is equal to the angle of incidence.

• Angle of reflection is unrelated to the angle of incidence

State the relationship between the angle of incidence and the angle of reflection.

• They are perpendicular

• They are random

• They are equal

• They are parallel

Describe how we measure the angle of incidence and the angle of reflection.

• We use a ruler to measure the angles

• We measure the angle of incidence and the angle of reflection using a protractor or an angle measuring tool.

• The angles are determined by looking at the shadows cast by objects

• The angles are measured by counting the number of degrees in a circle

What happens to the size of an object in a plane mirror?

• The size doubles

• The size disappears

• The size shrinks

• The size remains the same

Why does an object appear reversed in a plane mirror?

• Light reflects off the mirror following the law of reflection, causing the image to appear reversed.

• The object physically rotates in the mirror

• The mirror absorbs light causing the reversal

• The mirror distorts the image intentionally

How many images are formed when an object is placed in front of a plane mirror?

• 4

• 2

• 1

• 3