Question

Which of the following is/are the characteristic(s) of light?

• A.
  Rectilinear propagation
  
• B. Reflection
• C. Refraction
• D. All of the above

Answer 1

The correct option is D All of the above

Light always travels in a straight line. This characteristic of light is called rectilinear propagation of light.
When a light ray strikes a smooth surface, it bounces back into the same medium. This characteristic of light is called reflection of light.
When a light ray passes from one transparent medium into another, it deviates from its path. This characteristic of light is called refraction of light.