Q81. What is the solid angle subtended by the entire surface of a sphere at its center?Physics — NUST Mock By IBAGRADS 2 — Question 81 of 200A. 4/3 π radiansB. 4/3 π steradiansC. 4π steradiansD. 2π steradiansPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →