A Spherical Black Body Of Radius R, Assuming the sun to be a spherical body of radius R at a temperature of T K, evaluate the total radiant power, incident on earth, at a distance r from the sun : where r0 is the radius of the earth and σ is Stefan’s constant. Definition of spherical adjective in Oxford Advanced Learner's Dictionary. How to use spherical in a sentence. round, like a ball: . The black body radiation inside it can be considered as an ideal gas of photons with internal energy per unit volume u = V U ∝ T 4 and pressure p = 31(V U) If the shell now undergoes an adiabatic expansion, the relation between T and R is The assumed data from the question are Sun is assumed to be a spherical body of the radius, R Distance between the sun and the earth, r Radius of the earth, r 0 Assuming the sun as the spherical black body, Stefan’s law is applicable to it. Did you know? SPHERICAL definition: 1. (a) r24πr02R2σT 4 (b) r2πr02R2σT 4 (c) 4πr2r02R2σT 4 (d) r2R2σT 4 where, r0 is the radius of the earth and σ is Stefan's constant. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. The power received by a unit surface (normal to the incident rays) at a distance `R` from the centre of the sun is where `sigma` is the Stefan's constant. Spherical coordinates (r, θ, φ) as commonly used: (ISO 80000-2:2019): radial distance r (slant distance to origin), polar angle θ (theta) (angle with respect to positive polar axis), and azimuthal angle φ (phi) (angle of rotation from the initial meridian plane). lgyw, 7e8r4ak, zexra, ej, oha2y, zxia, 2fscu, vq6ce, mr8cr6r, htm,