Question

Draw a ray diagram to show the formation of a rainbow in the sky. On this diagram mark A where dispersion of light occurs, B where internal reflection of light occurs and C where refraction of light occurs.

Answer 1

This figure depicts the development of a rainbow as a result of light dispersion.

• Dispersion happens at point 'A' because white light splits into colors at this point.
• Internal reflection happens at point(s) B and B' when light is divided into many colors or beams and reflected.