Reason behind converging and diverging light by a lens
Converging light by a lens:
- When light passes through a converging lens, the lens causes the light rays to bend towards a common focal point.
- This converging action is due to the shape of the lens, which is thicker in the center and thinner at the edges.
- Converging lenses are used in devices such as cameras and telescopes to focus light rays and create clear images.
- The converging action of the lens helps in bringing distant objects into focus by bending the light rays towards each other.
Diverging light by a lens:
- On the other hand, a diverging lens causes light rays to spread out as they pass through it.
- Diverging lenses are thinner in the center and thicker at the edges, causing the light rays to diverge away from each other.
- Diverging lenses are used in devices like eyeglasses to correct vision problems such as myopia (nearsightedness).
- The diverging action of the lens helps in spreading out the light rays to compensate for the focusing issues in the eye.
In conclusion, the reason behind converging and diverging light by a lens lies in the shape and curvature of the lens, which determines how the light rays are refracted. Whether the lens converges or diverges the light depends on its design and purpose in optical systems.