• Pallavi Saikia

Spacetime is interpreted in physics, the utmost promising branch of science, as a mathematical model that associates the three dimensions of space and one dimension of time which is also playing the role as an important co-ordinate to illustrate the cosmological aspects, into a single four-dimensional diverse portfolio. Spacetime diagrams can be cast-off to envisage relativistic significances. The conceptions regarding existence of space-time are quite suppositional and is not conceivable to perceive whereas only the individual quanta of matter and energy that exist within the specified spacetime can be engrained. The appearance of objects at cosmological distances is affected by the curvature of spacetime through which light travels on its way to Earth. The most complete description of the geometrical properties of the Universe is provided by Einstein’s general theory of relativity. In General Relativity, the fundamental quantity is the metric which describes the geometry of spacetime.

cosmology, relativity, metric, geometry, Earth.

"The Advantageous Facet of Friedmann–Lemaître–Robertson–Walker metric (FLRW) in Relativistic Cosmology", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 8, page no.g191-g197, August-2023, Available :http://www.jetir.org/papers/JETIR2308620.pdf

"The Advantageous Facet of Friedmann–Lemaître–Robertson–Walker metric (FLRW) in Relativistic Cosmology", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 8, page no. ppg191-g197, August-2023, Available at : http://www.jetir.org/papers/JETIR2308620.pdf