Speed of Light - BYJUS Speed of Light The velocity of the light in the vacuum or air: The speed of light c = 299792458 m s ≅ 3 × 108 m s The velocity of light can be expressed in terms of mph or km s That is- The speed of light in mph 186,000 miles per hour The speed of light in air is 299792 km s
What are the Properties of Light? - BYJUS Following are the important properties of light – Light travels in a straight line The speed of light is faster than sound Light travels at a speed of 3 x 10 8 m s Reflection of light Reflection is the phenomenon in which light travelling in one medium, incident on the surface of another returns to the first medium, obeying the laws of
What Is Refractive Index? - BYJUS The ratio between the speed of light in medium to speed in a vacuum is the refractive index When light travels in a medium other than the vacuum, the atoms of that medium continually absorb and re-emit the particles of light, slowing down the speed light In this article, let us discuss the r efractive index of water and various mediums
What Is Wavelength? - BYJUS What Is Wavelength? The wavelength of light is defined as “The distance between the two successive crests or troughs of the light wave” It is denoted by the Greek letter lambda (λ) Therefore, the distance between either one crest or trough of one wave and the next wave is known as wavelength
The Formula for Wavelength to Frequency - BYJUS C is the speed of the wave in the given medium, expressed in terms of m s f is the frequency of the wave expressed in terms of Hertz Solved Examples Example 1 In an experiment, the wavelength of a photon particle was observed to be 500 nm What can be said about the frequency of the wave? Solution: Given, the wavelength of the photon particle
What is Electromagnetic Radiation? - BYJUS What are the properties of electromagnetic radiation? Electromagnetic radiation has several properties, including the ability to travel through empty space, constant speed of light, different wavelengths and frequencies, and a range of energy levels
What Is Luminiferous Ether or Aether? - BYJUS The speed of light was measured in the experiment by analyzing the interference fringes pattern that resulted when the light had passed through the two perpendicular arms of the interferometer Michelson and Morley observed that light traveled faster along an arm which was oriented in the same direction as the ether
What is Frequency? - BYJUS The wave speed is equal to the product of its frequency and wavelength, and this implies the relationship between frequency and wavelength Learn the relationship between velocity and wavelength and the relationship between amplitude and frequency by clicking on the links below: