S.5 Term 2; Light: Refraction Of Light Through Triangular Prisms.

Refraction Of Light Through Triangular Prisms

The total deviation suffered by a ray of light as it enters and leaves the glass prism is the sum of the angles of deviation of the ray at the two refracting surfaces. This concept is used in the spectrometer in analyzing light.

Objectives

By the end of this course/topic, a learner should be able to:

• measure the refracting angle of a triangular
• derive the expressions

• Describe the structure and action of the spectrometer
• Describe an experiment to determine the angle of minimum deviation,

• derive an expression for the limiting angle of a prism
• Derive the expression d = (n- 1)A.
• Explain the dispersion of white light by glass prisms
• Describe applications of glass prisms.
• Solve numerical problems.

Subtopics to be covered:

1. Refraction through a glass prism
2. Minimum angle of deviation and Angle of the prism
3.  Dispersion
4. More revision question

Also note that:

1. You will have to do some tests/quizzes so as to test your progress.
2. You will enjoy some games along with the lesson.
3. You can participate in the forum where you can create a question of discussion and fellow student respond to the topics)
4.  Feel free to let your friends know about this platform.

Enjoy 🙂