2. A small radiant source 4₁ emits diffusely with an intensity I₁= 1.2 × 105 W/m². sr. Theradiation detector 42 is aligned normal to the source at a distance of Lo = 0.2 m. Anopaque screen is positioned midway between A1 and A2 to prevent radiation from thesource reaching the detector. The small surface Am is a perfectly diffuse mirror thatpermits radiation emitted from the source to be reflected into the detector.y₁ = 0.1 m-Opaque screenA₂ = A1Am = 2A1A₁ = 1 x 104 m²0x = 0.1 mx+L₁ = 0.2 m(a) Calculate the radiant power incident on Am due to emission from the source A1,91→m(W).(b) Assuming that the radiant power, 91→m, is perfectly and diffusely reflected, calculatethe intensity leaving Am, Im (W/m². sr).(c) Calculate the radiant power incident on 42 due to the reflected radiation leaving Am,9m→2(μW).

Step 1: Step 2: Step 3: Step 4:

Answered: 2. A small radiant source 4₁ emits…

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter11: Heat Transfer By Radiation

Section: Chapter Questions

Problem 11.28P

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