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Hindustani classical music is the classical music of the Indian subcontinent 's northern regions. It may also be called North Indian classical music or Uttar Bhartiya shastriya sangeet. The term shastriya sangeet literally means classical music, and is also used to refer to Indian classical music in general. [1]
Earth is rounded into an ellipsoid with a circumference of about 40,000 km. It is the densest planet in the Solar System. Of the four rocky planets, it is the largest and most massive. Earth is about eight light-minutes away from the Sun and orbits it, taking a year (about 365.25 days) to complete one revolution.
Light pollution is the presence of any unwanted, inappropriate, or excessive artificial lighting. [1][2] In a descriptive sense, the term light pollution refers to the effects of any poorly implemented lighting sources, during the day or night. Light pollution can be understood not only as a phenomenon resulting from a specific source or kind ...
C. V. Raman. In this Indian name, the name Chandrasekhara is a patronymic, and the person should be referred to by the given name, Venkata Raman, or just Raman. Sir Chandrasekhara Venkata Raman FRS (/ ˈrɑːmən /; [ 1 ] 7 November 1888 – 21 November 1970) was an Indian physicist known for his work in the field of light scattering. [ 2 ...
The pivotal question then, was how to unify Maxwell's wave theory of light with its experimentally observed particle nature. The answer to this question occupied Albert Einstein for the rest of his life, [57] and was solved in quantum electrodynamics and its successor, the Standard Model. (See § Quantum field theory and § As a gauge boson ...
v. t. e. Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. [1] Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz. The visible band sits adjacent to the ...
Arti (Hinduism) Arti. (Hinduism) Arti (Hindi: आरती, romanized: Āratī) or Aarati (Sanskrit: आरात्रिक, romanized: Ārātrika) [1][2] is a Hindu ritual employed in worship, part of a puja, in which light from a flame (fuelled by camphor, ghee, or oil) is ritually waved to venerate deities. [3][4][5] Arti also refers to ...
A solar cell or photovoltaic cell (PV cell) is an electronic device that converts the energy of light directly into electricity by means of the photovoltaic effect. [1] It is a form of photoelectric cell, a device whose electrical characteristics (such as current, voltage, or resistance) vary when it is exposed to light.