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tankabanditka [31]
3 years ago
13

Which device would you use to most easily measure the illuminance on a surface?

Physics
2 answers:
lubasha [3.4K]3 years ago
7 0
A light meter, because illu is a root for light
vladimir2022 [97]3 years ago
3 0

Which device would you use to most easily measure the illuminance on a surface?

A. Diaphragm

B. Photometer

C. Polarizer

D. Light meter

THE CORRECT ANSWER IS D.

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Answer:

Explanation:

Part A) Using

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Part B)  Using

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rearrange to solve for E= \sqrt{((I*2)/(c*ε))

c is the speed of light which is 3*10^8 m/s^2

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amplitude of the electric field E= \sqrt{(9*10^10 W/m^2)*(2) / (3*10^8 m/s^2)*(8.85* 10^-12 F⋅m−1)

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