InterviewSolution
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InterviewSolution
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The angle being measured from a plane and which is equal to angle between the beam of rays and normal to the plane is called __________(a) Incident angle(b) Azimuth angle(c) Hour angle(d) DeclinationThe question was asked in an international level competition.Query is from Solar Radiation Measurement topic in section Solar Energy of Energy Engineering |
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Answer» CORRECT choice is (a) Incident angle The EXPLANATION: The angle being measured from a plane and which is EQUAL to angle between the beam of rays and NORMAL to the plane is called as incident angle. And it is denoted by Greek letter θ (Theta). The angle of incidence (θ) is the angle between the sun’s rays irradiated on a surface and the line normal to this surface. |
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