Clyner791 said:
The focal length of a concave lens remains constant when placed in a different medium. This is because the curvature of the lens remains unchanged, and the focal length is determined by the curvature of the lens.
The refractive index of a medium can affect the focal length of a concave lens. A higher refractive index will cause the light to bend more, resulting in a shorter focal length. A lower refractive index will cause less bending, resulting in a longer focal length.
Yes, the focal length of a concave lens can be negative in a different medium. This is because the focal length is defined as the distance from the lens to the point where parallel rays of light converge. In some cases, the light may diverge instead of converging, resulting in a negative focal length.
The size of the lens does not affect the change in focal length when placed in a different medium. The curvature of the lens and the refractive index of the medium are the main factors that determine the change in focal length.
Yes, the shape of a concave lens can affect the change in focal length in a different medium. A more curved lens will cause a greater change in focal length compared to a less curved lens. However, the change in focal length will still be determined by the refractive index of the medium.