noun🔗Shareस्टेरेडियनIn the International System of Units, the derived unit of solid angle; the solid angle subtended at the centre of a sphere of radius r by a portion of the surface of the sphere that has area r2. Symbol: sr"The lamp's reflector concentrates the light into a solid angle of approximately one steradian, providing focused illumination. "लैंप का परावर्तक प्रकाश को लगभग एक स्टेरेडियन के ठोस कोण में केंद्रित करता है, जो केंद्रित रोशनी प्रदान करता है।mathphysicsunitChat with AIVocabulary GamePractice Reading