Sarthaks Test
0 votes
in Environmental Science by (15 points)
A body at


in black surroundings at


has an emissivity of 0.4 at


and 0.7 at


. Calculate the rate of heat loss by radiation per square metre.

a) when the body is assumed gray

b) w

hen the body is not gray

c) What is the error in assuming a gray body? Assuming that the absorptivity is independent of the

surface temperature.

Please log in or register to answer this question.

Related questions

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.