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    Question

    Lamberts law is related to

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    A Reflection Correct Answer Incorrect Answer
    B Refraction Correct Answer Incorrect Answer
    C Interference Correct Answer Incorrect Answer
    D Illumination Correct Answer Incorrect Answer

    Solution

    Lambert's Law says that the intensity of emitted light from a surface is directly proportional to the cosine of the angle between the line of view and the normal to the surface. A Lambertian surface is a surface that follows this rule exactly. In practice, most surfaces are not perfectly Lambertian. A surface which obeys Lambert's law is said to be Lambertian, and exhibits Lambertian reflectance. Such a surface has the same radiance when viewed from any angle.

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