In a concave lens, a ray of light emanating from the object parallel to the principal axis of the lens after refraction:

Question

Accepted Answer

B. 1. **Recall how a concave lens bends parallel rays.** A concave (diverging) lens spreads out any ray that travels parallel to the principal axis instead of converging it.

2. **Trace the ray backward.** After refraction, the outgoing ray diverges, but if we extend this diverging ray backward on the same side as the incoming ray, all such backward extensions appear to meet at a single point on the object side of the lens.

3. **Identify this point.** This point, from which the refracted ray *appears* to diverge, is the principal focus on the side of the incident ray.

4. **Conclude the behaviour.** So the ray does not actually pass through any focus (since it diverges), it only **appears to diverge from a focal point**.

Hence, the correct description is that the ray **appears to diverge from the first principal focus**, matching **option B**.