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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.
Wiki User
∙ 10y ago
Wiki User
∙ 13y agobecause the light emitted by each excited electron is independent of medium in which electron is present
Wiki User
∙ 13y agoThe frequency of light can change, since the frequency of a light beam is relative to the observer, as described in Relativity Theory.
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Does the wavelength and frequency of light changes when it enters glass from air?
Nothing. The speed changes. We live in a universe where electromagnetic waves change frequency if they can't change speed (and in a vacuum they can't), and only change speed if they enter another medium like glass.
Why wavelenth changes with speed of light?
Wavelength does not change with the speed of light, nor does the speed of light change for different wave lengths. Wavelength x frequency = c (the speed of light) always for any given medium through which it travels. Greater wavelength yields lower frequency, so the speed is always the same. Speed changes as light passes into different media transparent to light, but the change in speed has nothing to do with any change in frequency or wavelength. Those are related only to the nature of the material and the particular light energies it may pass or absorb. So white light passing through a red filter emerges red because the blue and green frequencies have been absorbed by the filtering material. That change in wavelength and frequency is not related to any change in speed within the filter.
When is the speed of light increases or decreases after refraction?
Refraction comes into play only when the light travels from one medium into another medium. The speed of light is different in different media, so the wavelength changes due to refraction. The formula for wavelength is the ratio of the speed of light to its frequency. The most important point is that the frequency character of light remains constant eventhough it travels in different media. Hence the wavelength is directly proportional to the speed of light. So as speed changes, the wavelength also changes accordingly.
Does the speed of light changes when it goes from rarer medium to denser medium having angle of incidence equal to 0?
The speed of light changes when it goes from one medium to another one with a different index of refraction. The angle of incidence doesn't influence the change in speed.
Does thr color of light depends upon its wavelength or frequency fundamentally?
Fundamentally it is the frequency. When light travels into a medium like glass the speed and wavelength can decrease but the frequency and color do not change. If light does not pass thru different mediums then it is safe to talk about its color in terms of either frequency or wavelength (one is inversely proportional to the other by speed of light = frequency x wavelength) but fundamentally one would use frequency.
Why frequency of light is not change When it enter from a rarer medium to denser medium?
Frequency is a function of the energy level of the photon. Changing the medium does not change that energy level.
When light wave change its medium from dense to rare frequency increases or decreases?
Frequency doesn't change in the transition between media. Speed changes, with a consequent changein wavelength. In passing to a less-dense medium, speed and wavelength both increase.
When a beam of light eneters one medium from the other a quantity that never changes is its?
Frequency
What is the relationship between wavelength and frequency in the elecrtomagnetic spectrum?
They are inversely related. The product of these two would give the velocity of electromagnetic wave in the medium. The frequency character would never change as the wave changes from one medium to the other. But as the speed changes then definitely its wavelength would change
Does the wavelength and frequency of light changes when it enters glass from air?
Nothing. The speed changes. We live in a universe where electromagnetic waves change frequency if they can't change speed (and in a vacuum they can't), and only change speed if they enter another medium like glass.
Why do wavelength of light changes when it travels from one medium to another?
It gets shorter due to slower speed. Beware: color depends on frequency, which doesn't change. The frequency of light is defined by its wavelength. When light travels from air into water, there is a phase shift in the electromagnetic ripple, not a frequency shift.
When light moves from one medium into another its speed?
Its speed changes but its frequency remains the same.
Which property of light will change when the medium of propagation changes?
The speed.
In physics a change in frequency of light passing through a transparent medium?
RAMAN EFFECT
What happen if light pass through a gas medium?
frequency change take place
What property does not change when a wave goes from 1 medium to another?
The answer is normally considered to be frequency. Unless the media are in relative motion and the observers reference frame changes with the light.As light transits from one medium to another, it undergoes a process called refraction. In normal refraction, both the speed of light and the wavelength change, but the frequency remains the same.But if the light is sent by a spacecraft or emitter in space (sun or star) and measured in the atmospheric medium of earth (different reference frame) the frequency will have changed, as light always does 'c/n' locally, where n is the refractive index, in each inertial frame (in relative motion).What does not change is the energy it contains, as frequency always balances wavelength. (E = f Lambda).
Does light's Energy Decreases as it travels from air into water?
No the Energy of the light doesn't change when it passes through rarer to denser medium. Only Wavelength changes which cause change in its direction. Since Frequency is directly proportional to the Energy and frequency is constant during refraction therefore the energy also remain constant.
