![A beam of light incident on a convex lens parallel to its principal axis converges at a point on the principal axis Name the point Draw a ray diagram to show it A beam of light incident on a convex lens parallel to its principal axis converges at a point on the principal axis Name the point Draw a ray diagram to show it](https://content-grail-production.s3.amazonaws.com/quetsion-media/10891abf-d4a4-490e-98fe-f548b075cd53-9402747.png)
A beam of light incident on a convex lens parallel to its principal axis converges at a point on the principal axis Name the point Draw a ray diagram to show it
![A parallel beam of light is incident on diverging lens of focal length 12 cm. The emergent beam passes through a converging lens of focal length 20 cm placed coaxial with it. A parallel beam of light is incident on diverging lens of focal length 12 cm. The emergent beam passes through a converging lens of focal length 20 cm placed coaxial with it.](https://homework.study.com/cimages/multimages/16/4587233786064874567982.png)
A parallel beam of light is incident on diverging lens of focal length 12 cm. The emergent beam passes through a converging lens of focal length 20 cm placed coaxial with it.
![A ray starting from the focus of a concave lens becomes parallel to the principal axis after refraction. A ray starting from the focus of a concave lens becomes parallel to the principal axis after refraction.](https://search-static.byjusweb.com/question-images/byjus/infinitestudent-images/ckeditor_assets/pictures/250230/content_untitled-37.png)