The illuminance level on the edges of a round table is equal to 400(x). Diameter of the table is 2 (m) and a point source of lighting is fixed 2 (m) above the centre of the table. a. Determine the luminous intensity of the light. b. Calculate the illuminance level on the edges of the round table if the luminous intensity of the light is changed to 3000 (cd).

The illuminance level on the edges of a round table is equal to 400(x). Diameter of the table is 2 (m) and a point source of lighting is fixed 2 (m) above the centre of the table. a. Determine the luminous intensity of the light. b. Calculate the illuminance level on the edges of the round table if the luminous intensity of the light is changed to 3000 (cd).

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter25: Reflection And Refraction Of Light

Section: Chapter Questions

Problem 47P

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