Both spotlights SPOTLIGHT#1 and SPOTLIGHT#2 areplace at 20 meters from the stage. You want to produce acircle of light of 1 meter diameter with theSPOTLIGHT#1and a circle of light of 2 meters diameterwith the SPOTLIGHT#2 3) If the lamp used is a LED lamp with an efficacy of 90Lumen/Watt, what will be the power of the lamp?4) You want to have an illuminance of 600 lux on theBeauty and the Beast (under the SPOTLIGHT#2).What is the Luminous Flux (lumen) the lamp need toreleases assuming homogeneous distribution of thelight in the illuminated circle?5) If the lamp used is a LED lamp with an efficacy of 90Lumen/Watt, what will be the power of the lamp?

Answered: Image /qna-images/answer/03930ee5-1b2e-4885-b91c-071391ea4a2b.jpg

Answered: 3) If the lamp used is a LED lamp with…

Principles Of Radiographic Imaging: An Art And A Science

6th Edition

ISBN:9781337711067

Author:Richard R. Carlton, Arlene M. Adler, Vesna Balac

Publisher:Richard R. Carlton, Arlene M. Adler, Vesna Balac

Chapter42: Diagnostic Medical Sonography

Section: Chapter Questions

Problem 5RQ

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