Book Title: Preksha Dhyana Perception of Psychic Colours
Author(s): Mahapragna Acharya
Publisher: Jain Vishva Bharati

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Page 30
________________ :II: PSYCHIC COLOURS : SCIENTIFIC VERSION Colour and Cosmology What is Colour ? To answer the basic question "What is colour ?" we must begin with the nature of light itself, because we see colours only by means of light, whether natural (that of sun) or artificial (that of a lighted bulb or tubelight). According to the wave-theory, light is electromagnetic energy radiated in the form of a wave travelling away from a luminous object, i.e. the source of light. Sunlight, which appears while, is a mixture of different kinds of light, cach kind being ofone purecolour. When sunlight enters a glass prism, one of the most beautiful of phenomena occurs. From the other side of the prism comes not white light, but every colour in the rainbow, from red to violet with orange, yellow, green, blue and indigo in between. This display of colours is called a white light spectrum or visible spectrum. When white light, which is a mixture of different kinds of light passes through a prism, different colours are bent by different amounts-red the least, violet the nost, and the other colours by an intermediate amount. Each colour has its own specific wave-length and frequency. These 13 Jain Education International For Private & Personal Use Only www.jainelibrary.org

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