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What variable in the wave speed equation is constant in a vacuum?
In a vacuum, the speed of light is constant and is denoted by the variable "c" in the wave speed equation. This speed is approximately 3.00 x 10^8 meters per second.
What is the propagation direction of light in a vacuum?
The propagation direction of light in a vacuum is straight and constant.
In vacuum the shorter the wavelength of an electromagnetic wave is the?
In a vacuum, the speed of light is constant, so shorter wavelengths of electromagnetic waves have higher frequencies. This relationship is described by the equation speed = frequency x wavelength.
In Albert Einstein's famous equation e equals mc squared what does the letter c represent?
In the equation E=mc^2, the letter c represents the speed of light in a vacuum. It is a constant value equal to approximately 299,792,458 meters per second.
Why does light move at a constant speed in a vacuum?
Light moves at a constant speed in a vacuum because of the properties of space and time, as described by the theory of relativity. According to this theory, the speed of light is a fundamental constant and does not change regardless of the observer's motion or the source of the light.
