Ray Diagram/Thin Lens Equation

Front

What is the thin lens equation?

Back

1/f = 1/do + 1/di, where f is the focal length, do is the object distance, and di is the image distance.

Front

What happens to light when it passes from a denser medium (like water) to a less dense medium (like air)?

Back

Light bends away from the normal.

Front

If an object is located within the focal length of a convex lens, what type of image is formed?

Back

The image is virtual and upright.

Front

What is the definition of focal length in the context of lenses?

Back

Focal length is the distance from the lens to the focal point, where parallel rays of light converge.

Front

What type of image is formed when an object is outside the focal length of a convex lens?

Back

The image is real and inverted.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another due to a change in speed.

Front

What is the significance of the focal point in lens optics?

Back

The focal point is where light rays parallel to the optical axis converge after passing through the lens.

Front

How does the image distance relate to the object distance in a convex lens?

Back

For a convex lens, as the object distance increases, the image distance also increases.

Front

What is the difference between real and virtual images?

Back

Real images can be projected on a screen and are inverted, while virtual images cannot be projected and are upright.

Front

What is the principle of reversibility of light?

Back

Light travels in straight lines and can be reversed; the path of light can be traced backward.