Question

Which of the following statements is true about light rays?

• A. Light rays travel along a straight line in a specific medium.
• B. Intensity of light rays is affected by the wind.
• C. Light rays travel in a straight line on changing mediums.
• D. Light rays follow a circular path around Earth's circumference.

Answer 1

The correct option is A Light rays travel along a straight line in a specific medium.

In a given medium, light always travels in a straight line. Light only bends when the medium changes i.e. from air to water or air to glass etc. Intensity of light is not dependent on the medium either.