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Jainism Through Science
25
In these waves the shapes bulging out on the upper side are called crests and those bulging out on the lower side are called throughs. These light waves are transverse waves.
4. Longitudinal waves: The waves in which the direction of displacement of particles of the medium is along the direction of propagation of waves are called longitudinal waves. e.g. Sound waves travelling in air or any other media.
The particles of the fundamental medium of waves can move upwards and downwards in their own definite place but they cannot go from one point to another point of the same medium. In this way they impart kinetic energy to the nearest particles. So it is believed that conduction of energy takes place. But according to Jain philosophical contention no conduction takes place here but, really speaking minute particles move in light waves, sound waves and electromagnetic waves.
De Broglie, the French physicist was awarded the Noble Prize in physics (1929) for his contribution to modern quantum theory. In 1927 he demonstrated by experiments that particles exhibit wave like properties and thus established the field of wave mechanics. With the help of Einstein's theory of relativity he showed that light is in the form of material corpuscle waves. He took for granted that particles of light (photons) have some mass. Though modern scientists believe that a photon has zero mass, De Broglie showed with a mathematical equation that there is a great similarity between light particles and material particles. With a number of practical proofs he showed that there are photons in light and it is not possible to say that light is not in the form of wave. Both these forms enjoy simultaneous existence.
As in the theory of relativity, energy is connected with matter, so here also we can connect material particles and its mass with energy and frequency of waves. This is as under :
- A material particle has mass.
Mass is energy. Energy denotes frequency and frequency denotes waves.
