Refraction of Light - Physics (Senior Secondary)

Light bends when it moves from air into water or glass. This course explains why this happens and how to calculate the change in speed and direction using Snell's law and refractive index. You will learn about critical angles, total internal reflection, and how light behaves passing through rectangular blocks and triangular prisms. The lessons cover real and apparent depth, the formation of rainbows, and how lenses converge or diverge light rays to form images. Understanding refraction is essential for many technical jobs and daily life. It is the reason we can use spectacles to see clearly, cameras to take photos, and microscopes to study small germs. Engineers use these principles to design fibre optic cables for fast internet and medical endoscopes for internal body checks. Knowing how light bends helps you understand why a pool looks shallower than it is and how mirages form on hot Nigerian roads. By the end of this course, you will be able to state the laws of refraction and calculate the refractive index of different materials. You will gain the skill to draw accurate ray diagrams for both convex and concave lenses and determine image position, size, and nature. You will also learn to solve problems involving the power of a lens and explain the working principles of the human eye and optical instruments like the telescope or projector. This course is for Senior Secondary students in SS1 to SS3 preparing for WAEC, NECO, or JAMB exams. It is also useful for university students in preliminary years who need a solid foundation in optics. Even if you are not a student, this knowledge helps you understand how the world works, from how your car side mirrors function to why diamonds sparkle so brightly. This training turns abstract physics into clear, usable facts for anyone interested in science and technology.

$ 9.99

Enrolment valid for 12 months
This course is also part of the following learning track. You may join the track to gain comprehensive knowledge across related courses.
Physics
Physics
Physics controls every machine, building, and system you will design or maintain. This complete programme covers every topic required for the JAMB UTME physics paper. You will move past basic definitions and learn to solve exact problems using standard laws and formulas. We focus strictly on measurements, mechanics, thermal properties, waves, electricity, and modern physics. You will gain a working knowledge of the physical world without unnecessary theory. This track suits senior secondary students preparing for WAEC, NECO, or JAMB examinations. It serves first-year university undergraduates in engineering or physical sciences who require a firm foundation. Technical beginners and independent learners who plan to enter engineering, medicine, telecommunications, or skilled trades will find these lessons essential for their next steps. You will finish able to calculate forces, analyse electrical circuits, predict wave behaviour, and explain atomic interactions. You will interpret laboratory data, apply mathematical models to physical systems, and answer examination questions with speed and accuracy. This preparation secures high scores in national entrance tests and builds the technical base required for university engineering degrees or direct entry into professional technical work.

Physics controls every machine, building, and system you will design or maintain. This complete programme covers every topic required for the JAMB UTME physics paper. You will move past basic definitions and learn to solve exact problems using standard laws and formulas. We focus strictly on measurements, mechanics, thermal properties, waves, electricity, and modern physics. You will gain a working knowledge of the physical world without unnecessary theory. This track suits senior secondary students preparing for WAEC, NECO, or JAMB examinations. It serves first-year university undergraduates in engineering or physical sciences who require a firm foundation. Technical beginners and independent learners who plan to enter engineering, medicine, telecommunications, or skilled trades will find these lessons essential for their next steps. You will finish able to calculate forces, analyse electrical circuits, predict wave behaviour, and explain atomic interactions. You will interpret laboratory data, apply mathematical models to physical systems, and answer examination questions with speed and accuracy. This preparation secures high scores in national entrance tests and builds the technical base required for university engineering degrees or direct entry into professional technical work.

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