Geometric Optics Review

An object is 1 m in front of a plane mirror. The image is

• virtual, inverted, and 1 m behind the mirror

• virtual, upright, and 1 m in front of the mirror

• real, upright, and 1 m behind the mirror

• None of these

Which of the following is true when light enters a denser medium?

• v increases, λ decreases, and n increases

• v increases, λ decreases, and n decreases

• v decreases, λ increases, and n increases

• v decreases, λ decreases, and n increases

Rank the indexes of refraction from greatest to least.

• n₁ > n₂ > n₃

• n₂ > n₁ > n₃

• n₃ > n₁ > n₂

• n₁ > n₃ > n₂

At and beyond the critical angle, all the light striking the boundary between two substances is

• refracted

• reflected

• some is reflected and some is refracted

• absorbed

An image appearing on a screen after passing through a lens is

• real and upright

• virtual and inverted

• real and inverted

• none of these

The image formed by a convex mirror is

• real and upright

• real and inverted

• virtual and upright

• none of these

How will the image change as the object moves from 2f to f ?

• image will increase in size and move away from the mirror

• image will increase in size and move toward the mirror

• image will decrease in size and move away from the mirror

• image size remains constant but moves away from the mirror

The object is positioned just inside of the focus. Which correctly describes the image?

• No image is formed

• real and upright

• real and inverted

• virtual and upright

The image formed by the object in the diagram would be

• real and inverted

• real and upright

• no image forms, ray traces never intersect

• virtual and upright

The image formed by the object in the diagram would be

• virtual and upright

• real and upright

• no image forms, ray traces never intersect

• real and inverted