Question

an abject is held at the principal focus of concave lens of focal lenght f. where the image will from? ​

Answer 1

Answer:

Explanation:

an object is held at the principal focus of a concave lens of focal length f. where the image will form. The image of an object kept at principle focus of a concave lens then the image will be formed between the optical centre and the principle focus on the same side of the lens in which the object is kept.

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Answer 2

Answer:

The image of an object kept at principle focus of a concave lens then the image will be formed between the optical centre and the principle focus on the same side of the lens in which the object is kept

Explanation: