Question

The ability of a camera system's lens to concentrate light depends on the:

1. diameter of the lens
2. focal length of the lens
3. area upon which it falls
4. amount of light mad available to the lens

Answer 1

A camera system's lens concentrates light through the process of refraction. Factors that affect the focal length of a lens include the shape and curvature of the lens surfaces, the refractive index of the lens material, and the medium surrounding the lens.

Step-by-step explanation:

Lens and Light Concentration:

A camera system's lens concentrates light through the process of refraction. When light passes through the lens, it is bent, causing the light rays to converge at a specific point called the image point. This is how a lens focuses light at the image point.

Factors Affecting Focal Length:

Several factors can affect the focal length of a lens:

1. Shape and Curvature of Lens Surfaces: The shape and curvature of the lens surfaces determine how light rays are refracted and focus, thus affecting the focal length.
2. Index of Refraction: The refractive index of the lens material determines how much the light is bent, influencing the focal length.
3. Medium Surrounding the Lens: The medium surrounding the lens can affect the speed of light and consequently impact the focal length.