Shivam Sharma posted an Question
September 08, 2020 • 21:52 pm 30 points
  • CSIR NET
  • Earth Sciences

What is the radiative flux emitted froma black body at t = 200k? (stefan boltzmann constant o = 5.67 x 10- w/m-k<) a. -50 w/m2 b. 60 w/m2 d90 w/m2 c. -80 w/m2

What is the radiative flux emitted froma black body at T = 200K? (Stefan Boltzmann constant o = 5.67 x 10- W/m-k<) A. -50 W/m2 B. 60 W/m2 D90 W/m2 C. -80 W/m2

2 Answer(s) Answer Now
  • 1 Likes
  • 3 Comments
  • 0 Shares
  • comment-profile-img>
    Rahul kumar Best Answer

    Ans (D) 90 w/m^2 Radiative flux = emmisivity x Stefan-Boltzman constant x (Temp)^4 For black body, emmisivity=1, Putting values in above formula; Radiative flux = 1 x (5.67 x 10^(-8)) x (200)^4 = 90.72 watts/m^2

  • Veer vikram singh best-answer

    Radiative flux can be calculated by using simple formula as shown in the figure

whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers