Question

iska ans hai ky plzz jaldi dedo​

Answer 1

Answer:

Rules for obtaining images formed by concave lens

Rule 1: A ray of light parallel to the principal axis of the concave lens appears to be coming from focus after refraction through the lens. Rule 2: A ray of light passing through the optical centre of the concave lens goes straight after refraction through the lens

Answer 2

Answer:

1. ray parallel to principal axis will pass through focus
2. ray passing through focus will be become parallel to principal axis
3. ray passing through optical center will emerge without deviation