- #1
Gogsey
- 160
- 0
Why don't we see interference of light from two light sources such as two candles? 2 reasons are required.
Thanks
Thanks
Light Interference: Why Don't We See 2 Sources? 2 Reasons
- Thread starter Gogsey
- Start date
In summary, light interference is a phenomenon that occurs when two or more light waves interact with each other, resulting in constructive or destructive interference. This can cause the light to appear to come from a single source, and it is due to the principle of superposition. Light interference can also affect the colors we see, resulting in darker or brighter colors, and can even cause iridescence. It has many practical applications in various fields such as optics, technology, and industrial processes.
- #2
VantagePoint72
- 821
- 34
I was all set to answer till you added "2 reasons are required"... it makes this sound suspiciously like a homework problem.
- #3
vincentchan
- 609
- 0
since this is a homework problem, i can't give you the answer..(you said 2 reasons are required) 
but i'll give you some hints lead to the answer
1. wavelength... in order for a interference exist... what is the restriction on the wavelength?
2. the phase of the light wave...
but i'll give you some hints lead to the answer1. wavelength... in order for a interference exist... what is the restriction on the wavelength?
2. the phase of the light wave...
What is light interference?
Light interference is a phenomenon that occurs when two or more light waves meet and interact with each other. This interaction can result in a variety of different outcomes, such as constructive interference (where the waves amplify each other) or destructive interference (where the waves cancel each other out).
Why don't we see two sources of light when there are actually two?
This is because of the phenomenon known as superposition. When two light waves meet, their amplitudes are added together, resulting in a new wave. This new wave can make the light appear to come from a single source rather than two separate sources.
What are the two reasons for light interference?
The first reason is the wave nature of light. Light is a wave, and when two waves meet, they can interfere with each other. The second reason is the principle of superposition, which states that when two waves meet, their amplitudes are added together to create a new wave.
How does light interference affect the colors we see?
Light interference can affect the colors we see in a few different ways. For example, when two waves interfere destructively, they can cancel each other out, resulting in a darker color. On the other hand, when two waves interfere constructively, they can amplify each other, resulting in a brighter color. Additionally, light interference can also cause a phenomenon known as iridescence, where certain colors appear to change when viewed from different angles.
Can light interference be used for practical purposes?
Yes, light interference has many practical applications, such as in optical devices like microscopes and telescopes. It is also used in technologies like holography, which creates three-dimensional images using interference patterns. In addition, light interference is also used in many industrial processes, such as in the production of thin films for electronic devices.
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