# Does light travel in a straight line or wave?

## Does light travel in a straight line or wave?

Light waves travel in straight lines. You can detect them with your eyes, and also with instruments such as cameras. They are reflected by mirrors and change direction when they travel from the air into glass or water. Light travels very fast.

## Does light travel in a straight line experiment?

Two experiments are used to demonstrate how light travels in straight lines. In the first example, the presenter arranges three pieces of card, with holes in, in an uneven line. The light stops and cannot travel through all three cards. When she arranges the holes in a straight line, the light can travel through.

Does light travel in a wavy line?

Light does not travel as wavy lines, it travels in a straight line. The particles are vibrated perpendicular to the direction of propagation of the wave. Therefore, the light waves are transverse in nature.

Does wave travel in a straight line?

Waves travel in straight lines. A wave carries energy from a source to a point some distance away. The reflected wave moves away from the barrier at an angle that is equal to the angle with which the incoming wave moved towards the barrier. When a wave is slowed down, it refracts—that is, changes direction.

### How do you know light travels in a straight line?

Shadows are evidence of light travelling in straight lines. An object blocks light so that it can’t reach the surface where we see the shadow.

### What proves that light travels in a straight line?

Why do light travels in a straight line?

Hint: Light travels in a straight line because the diffraction effect is least due to the small wavelength of light. So the small wavelength of light produces negligible diffraction and therefore light travels along a straight line.

How can you prove light travels in a straight line?