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Why a medium is called as dispersive medium?
A medium is called dispersive when it causes different frequencies of light to travel at different speeds, leading to the separation of colors. This occurs because the refractive index of the medium varies with the frequency of light, resulting in dispersion.
How do you expect the light wave to travel differently?
Light waves can travel through different mediums, such as air, water, and glass. The speed and direction of light waves can change depending on the medium they are traveling through due to factors like refraction and reflection. The wavelength and frequency of light waves remain constant regardless of the medium they are traveling through.
Which wave characteristics remain unchanged when a wave crosses a boundary into a different medium?
The frequency of the light remains unchanged as it depends on the source of the light rather than the medium its traveling in.
Why are electromagnetic waves different from sound and water waves?
Electromagnetic waves do not require a medium to travel through, unlike sound and water waves which need a material medium. Electromagnetic waves also travel at the speed of light and can travel through a vacuum. Additionally, electromagnetic waves have different properties such as wavelength, frequency, and polarization compared to sound and water waves.
Can light wave travel through air?
Yes, light waves can travel through air because air is a medium through which electromagnetic waves can propagate. Light travels at different speeds through different mediums, but it can definitely travel through air.
Why a medium is called as dispersive medium?
A medium is called dispersive when it causes different frequencies of light to travel at different speeds, leading to the separation of colors. This occurs because the refractive index of the medium varies with the frequency of light, resulting in dispersion.
Why frequency of light never change when light changes medium?
When light enters another medium it changes speed, but thewavelength changes correspondingly so that the frequency does not change. For example, if light enters a medium where its speed is cut in half, then the wavelength will also be reduced by half.
How do you expect the light wave to travel differently?
Light waves can travel through different mediums, such as air, water, and glass. The speed and direction of light waves can change depending on the medium they are traveling through due to factors like refraction and reflection. The wavelength and frequency of light waves remain constant regardless of the medium they are traveling through.
Which wave characteristics remain unchanged when a wave crosses a boundary into a different medium?
The frequency of the light remains unchanged as it depends on the source of the light rather than the medium its traveling in.
Why are electromagnetic waves different from sound and water waves?
Electromagnetic waves do not require a medium to travel through, unlike sound and water waves which need a material medium. Electromagnetic waves also travel at the speed of light and can travel through a vacuum. Additionally, electromagnetic waves have different properties such as wavelength, frequency, and polarization compared to sound and water waves.
Can light wave travel through air?
Yes, light waves can travel through air because air is a medium through which electromagnetic waves can propagate. Light travels at different speeds through different mediums, but it can definitely travel through air.
What is meant when medium is described as dispersive cite an example of a dispersive medium?
When a medium is described as dispersive, it means that the speed of light through that medium depends on the frequency or wavelength of the light. An example of a dispersive medium is a prism, where white light is separated into its component colors due to their different speeds in the medium.
Light waves differ fundamentally from either water waves or sound waves because?
light waves do not require a medium to travel through, unlike water and sound waves which both need a medium (water and air, respectively). Light waves are electromagnetic in nature and can travel through a vacuum. They have different wave properties such as wavelength, frequency, and speed compared to water and sound waves.
What is faster red or violet light?
Violet light is faster than red light because violet light has a shorter wavelength and higher frequency, allowing it to travel faster through a medium.
Why light travels in absence of medium?
Cause light is a wave of moving particles (photons) that travel through different mediums but a medium is not needed to produce light, energy is. The speed, frequency and wave length all change with changing mediums. ie when u put a pool net in the water and look down the shaft it looks bent, this is the light entering a diff medium and changing speed and direction.
Who can we say light does not need to travel in medium?
Light can travel in a vacuum without the need for a medium. This is because light is composed of photons which do not require a medium, unlike other types of waves such as sound waves that do need a medium to propagate.
The frequency of electromagnetic energy traveling through a medium can change if what changes?
The frequency of electromagnetic energy traveling through a medium can change if the medium's refractive index changes. This can occur when light travels from one medium to another, causing a change in the speed of light, which in turn affects the frequency of the light waves.
