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Why does a light wave speed up when moved from air into hydrogen?
Wiki User
∙ 16y ago
Electromagnetic waves (such as light), do not require a medium like mechanical waves (sound). Thus, matter that lie in its path actually slow it down, since the particles, rather than helping the waves propagate (as in mechanical waves), act as obstacles to the propagation of the wave. Since hydrogen has a lower density than air, there is a lower number of particles per given amount of area, thus the EM wave encounters less resistance to its propagation, thus the wave travels faster.
Wiki User
∙ 16y ago
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What is the relationship between energy and the speed of light?
E= hc/x
Velocity of a wave increases and the wavelength stays the same. What will the result be when this happens?
Assuming an electromechanical wave not much. The speed of the wave depends on the medium that the wave is passing through. In a vacuum it is the speed of light, through something else a lesser speed. The wavelength stays the same and the frequency stays the same.
Limitations of Huygen's wave theory of light?
Give a brief account of huygen wave theory of light
What is the frequency of an atom who emits a photon of light having wavelength 615 nm.?
We, Know for any electromagnetic wave(or light) c=f*l where, c=speed of that wave(or light)=3*10^8 m/s f=frequency of the wave l=wavelength of the wave for the given case, l=600 nm=6*10^-7 m So, Frequence f=c/l=5*10^14 Hz
Who developed an empirical equation from which the wave lenghts of lines in the spectrum of hydrogen atoms can be calculated?
Rydberg
What type of speed is light?
Light is a type of wave; it is not a type of speed.
How does the speed of a photon compare with the speed of an electromagnetic wave?
Light can be considered as a wave, or as a particle. As a particle, the particles are called photons. As a wave, light is an electromagnetic wave. In either case, the speed of light (in a vacuum) is approximately 300,000 km/sec.
Why does light have a speed?
Light is an electromagnetic wave and, like all waves, it has a speed.
Energy that travels at speed of light?
That can be light, or some other electromagnetic wave (light is an electromagnetic wave), or gravitational waves.
What is the the speed at which a wave travel through a medium?
the true answer is light speed
Why does an electromagnetic wave in space never slow down?
In empty space, an electromagnetic wave can only travel at one speed - the speed of light.In empty space, an electromagnetic wave can only travel at one speed - the speed of light.In empty space, an electromagnetic wave can only travel at one speed - the speed of light.In empty space, an electromagnetic wave can only travel at one speed - the speed of light.
How do you calculate the frequency of light given its wavelength?
The speed of light = the frequency X wave length.. therefore:- Frequency = The speed of light (m/s) _______________ wave Length (m) Where the speed of light : 2.9979 x 10^8 (m/s)
How does the speed of a light or sound wave be changed?
,,,l;.
Can a wave travel faster than the speed of light?
No
Does speed of light depend on wave or particle nature?
No.
What is the wave speed of vissible light?
"Wave speed" is meaningless. Do you mean wavelength? That's roughly 400-700 nm.
What is the speed of any electromagnetic wave?
In a vacuum, any electromagnetic wave will move at the "speed of light", which is about 300,000 km/second.
