Question

In a concave lens, when an object is between infinity and the optical centre (O), an image is formed between the .

• A. focus (F${}_1$) and optical centre (O)
• B. focus (F${}_1$) and 2F${}_1$

Answer 1

The correct option is A focus (F${}_1$) and optical centre (O)

When an object is between infinity and the optical centre (O) of a concave lens, its image is formed between the focus (F${}_1$) and optical centre (O).