Depth Perception and Plane Mirrors

The video tutorial explains the concept of plane mirrors, focusing on how they reflect light to form images. It covers the principal axis, ray diagrams, and the law of reflection. The tutorial describes how virtual images are formed behind the mirror and discusses the congruence of angles and distances. It also explores how observers perceive images, emphasizing depth perception with one or two eyes.

What is the principal axis in the context of a plane mirror?

• A line that divides the mirror into two equal parts

• A line parallel to the mirror surface

• A line perpendicular to the mirror surface

• A line that represents the object in front of the mirror

What is the role of the principal axis in determining the path of light rays?

• It refracts light rays

• It helps in drawing rays parallel to it for reflection

• It reflects light rays at random angles

• It absorbs light rays

How is a virtual image formed in a plane mirror?

• By the extensions of reflected light rays

• By the actual meeting of light rays

• By the refraction of light rays

• By the absorption of light rays

What happens to light rays when they hit a plane mirror?

• They pass through the mirror

• They are absorbed by the mirror

• They reflect off the mirror

• They refract through the mirror

What is the relationship between the object distance and the image distance in a plane mirror?

• The object distance is greater than the image distance

• The object distance is less than the image distance

• The object distance is equal to the image distance

• The object distance is unrelated to the image distance

What is the nature of the image formed by a plane mirror?

• Real and inverted

• Virtual and inverted

• Virtual and upright

• Real and upright

Why do we perceive depth when looking at a plane mirror?

• Because our pupils can receive multiple rays from one point

• Because the mirror bends light rays

• Because the mirror creates a real image

• Because the mirror is curved

How does the size of the pupil affect the perception of depth?

• A larger pupil reduces depth perception

• A smaller pupil enhances depth perception

• The size of the pupil does not affect depth perception

• A larger pupil allows for better depth perception

How does covering one eye affect depth perception?

• It makes objects appear larger

• It has no effect on depth perception

• It reduces depth perception

• It enhances depth perception

Why do objects appear less 3D with one eye covered?

• Because the brain cannot process depth with one eye

• Because the mirror distorts the image

• Because the field of view is reduced

• Because fewer light rays are received from different angles