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Calculate the irradiance E in W/cm^2 if, radiant intensity I is 10 W/sr and range R is 10cm.(a) 0.1(b) 0.001(c) 0.45(d) 10I have been asked this question during an interview for a job.The origin of the question is Configuration Layout Considerations topic in section Configuration Layout Considerations of Aircraft Design

Answer»

Correct choice is (a) 0.1

Easy EXPLANATION: GIVEN, radiant intensity I = 10 W/sr, range R = 10 cm.

Irradiance E is given by,

E = I/R^2 = 10/10^2 = 10/100 = 0.1 W/cm^2.



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