Parallel light rays appear to pass through _________ after refraction from concave lens

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Solution

Concave lens
A concave lens deviates from its focus point and refracts light rays when parallel rays of light flow through it to the primary axis. It's known as the Concave or Diverging lens because of this.
A light beam strikes a concave lens parallel to its major axis, passes through it, and diverges. It appears to pass through the focus when extrapolated.
A ray of light that strikes a concave lens parallel to its major axis passes through it and diverges. It appears to pass through the focus when extrapolated.
When incident light passes through the optic centre, as in a convex lens, the refracted ray passes through with no deviation.
The incident light ray is refracted parallel to the primary axis if it passes through the focus. When a light beam passes through a lens, it deviates from its course, causing the light rays to refract.
After passing through the concave lens, incident rays that are parallel to the principal axis appear to diverge from a point on the principal axis. The focal point of a concave lens is located here.
Concave lens have two focal length
From either side, a light ray can travel through a lens. As a result, a lens has two primary foci.
The first focal point of a concave lens is a point F1 on the principal axis of the lens where the incident rays of light appear to meet after refraction from the lens becomes parallel to the principal axis of the lens after refraction from the lens becomes parallel to the principal axis of the lens after refraction from the lens becomes parallel to the principal axis of the lens after refraction from the lens becomes parallel to the principal axis of the lens after refraction
2. The second focal point of a concave lens is a point F2 on the principal axis of the lens where light rays incident parallel to the principal axis appear to be diverging following refraction from the lens.
Hence, parallel light rays appear to pass through focal length after refraction from concave lens

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