At the end of this video, students should be able to :

• Define a lens
• Explain how a lens forms images
• Classify lens into coverging and diverging lenses
• State the uses of each type of lens
• Define the basic terms associated with lenses
• Draw and explain ray diagrams for curves and excuse lenses
• Distinguish between real and virtual images formed by lenses

This video will help an O-level or Senior secondary school student prepare for exams such as WEAC, UTME, JAMB, GCE, IJMB, JUPEB, KCPE, and SSCE to come out with flying colors. You can study and practice more questions using the ExamGuide app. The app scores you and explains all the questions at the end of the practice. You can practice a particular topic of interest with different modes like study, mock, and practice modes. It also has other features that make learning fun. It is a must-have for any serious student. Download from www.examguide.com if you don’t have it yet.