Question

write three principal of refraction of convex lens​

Answer 1

Answer:

$</strong><strong>P</strong><strong>rincipals \: of \: convex \: lens..$

1. The focal length of a convex lens is positive.

2. The image formed by a convex lens can be small, same sized or magnified.

3. Convex lens can form real as well as virtual images.

4. Convex lens is used in the equipment such as microscope, telescope, camera, CD player, etc.

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Answer 2

1) object at infinity

2) object beyond the 2F point of the lens

3) object at the 2F point of the lens

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