What is Fermat's principle of least time?

Q: What is the propagating direction of light?

A:

Q: Define Huygens Principle.

A: Huygens principle was given by a Dutch Scientist, Christian Huygens which determines how and where…

Q: 6. A homogeneous beam of mass m and length L is held in place, as shown. The coefficient of static…

A: Given data:       Angle, θ=65°

Q: Does light have mass?

A: Light is defined as packets of energy. those packets of energy is called Photons.

Q: Marta did the following on her homework paper:      (3-y)2 32-y2 9-y2   Explain what is wrong…

A:

Q: If the wavelength of light is halved, by what fraction does the amount of the light scattered by…

A: Write the expression for the intensity of the light by Rayleigh’s law of scattering. I∝1λ4

Q: 22. The diagram shows a closed container partially filled with liquid. Point Y is 1 m below the lid,…

A:

Q: Express the following quantities in SI units:  23.4 grams = 2.34 x 10^-2  124 millimeters =  1…

A: Given quantities: 23.4 grams = 2.34 x 10^-2  124 millimeters =  1 hour and 24 min =   0.12…

Q: What is the speed of dark?

A: The light has a speed of 3×108 m/s and it takes about 8 minutes to reach the earth. The small…

Q: Question 7 of 15 A light ray refracts at the interface between two transparent materials as shown…

A:

Q: Hello. this question is regarding the speed of light  quick thought experiment:  you have a rod that…

A: Solution: Given: Is it possible to transmit a signal, faster than light, using a very long rigid rod…

Speed of light

The speed at which the light travels in a vacuum is unbiased for both the source and inertial frame of reference of the observer. This was postulated by the physicist, Albert Einstein, by observing the theory of electromagnetism of Maxwell. Also, there was no evidence for the luminiferous aether, that is, the medium for the propagation of light where the electromagnetic field exists.