Question

किसी उत्तल लेंस की फोकस दूरी क्या होती है​

Answer 1

Answer:

Focus Distance

Explanation:

The focal length of an optical object (e.g. mirrors, lenses, etc.) is the distance where parallel light rays come on it. The focus distance is indicative of the ability of an optical system to bend light. If the focus distance of a lens is less than the other lens, it means that a lens with a low focus distance is more capable of turning light.