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A simple means is to use a mirror (or some other reflective material). A ray of light will reflect and refract to varying degrees as it interacts with surfaces.
You can apply basic geometry with optics laws to see how you can change the path of a ray of light. Snell's Law gives the relationship between direction and different surfaces.
A more interesting means of changing light direction involves something about black holes. May be their distortion of space or time, or simply their apparent vast gravity. I believe we've managed to show that phonons (light) have mass, so you could use gravity to deflect them. I'm pretty sure photons also have magnetic and electric fields, so a sufficiently radical magnetic field would be handy too.
Now, to pick on your choice of words, light "can" change direction any time something that changes its direction occurs. In other words, it's not a function of time.
What else can I help you with?
What causes light to change directions?
The change in speed of light changes the direction.
When does light change directions?
when it hits an object
When light is reflected by a mirror it must change directions?
wave length
How do you Change light bulb on a Toyota Highlander 2002 back up light?
Look on the manual. It should have illustrated directions.
Why does a beam of light change directions when it enters the water?
Because it slows down when entering water.
In tennis do you need to be light on your feet?
It is extremely beneficial to be light on your feet.If you are light on your feet you can change directions faster, get to more balls, and hit solid shots when you are there.
Light waves change speed and directions when they pass from one transparent material into another This is called?
refraction
Can light go through water?
The light will change directions (to be closer to the normal) once it hits the water. This is known as refraction which is a property of light. In this case, you have 2 media (plural form of medium). The two are air and water.The reason it changes direction is because air allows a different speed of light than water. Water is denser which is why light can't travel as fast. This change in the speed of light is what causes the light to change direction once it hits the water.In conclusion, after light hits the water, it will change directions (to be closer to the normal) due to the fact that the medium is changed (from air to water) which results in a change in the speed of light.
What is reflecting light in all directions called?
Visible light causes reflection of light in all directions
Can a panda bear change directions quickly?
yes a panda change directions quickly
What happens when light passes into water?
The light will change directions (to be closer to the normal) once it hits the water. This is known as refraction which is a property of light. In this case, you have 2 media (plural form of medium). The two are air and water. The reason it changes direction is because air allows a different speed of light than water. Water is denser which is why light can't travel as fast. This change in the speed of light is what causes the light to change direction once it hits the water. In conclusion, after light hits the water, it will change directions (to be closer to the normal) due to the fact that the medium is changed(from air to water) which results in a change in the speed of light.
What is reflection of light in random directions called?
It is called scattering light if it is in random directions, or refraction if the light changes direction.
