An observer at a fixed distance from a light bulb measures the light intensity at her location to be 10 watts/m2. What is the maximum value of the electric field strength at the observer's location?    a. 87 N/C   b. 61 N/C   c. 48 N/C   d. 74 N/C   e. 100 N/C

University Physics Volume 2
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Chapter16: Electromagnetic Waves
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Problem 48P: While outdoors on a sunny day, a student holds a large convex lens of radius 4.0 cm above a sheet of...
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  1. An observer at a fixed distance from a light bulb measures the light intensity at her location to be 10 watts/m2. What is the maximum value of the electric field strength at the observer's location? 

      a.

    87 N/C

      b.

    61 N/C

      c.

    48 N/C

      d.

    74 N/C

      e.

    100 N/C

QUESTION 4
An observer at a fixed distance from a light bulb measures the light intensity at her location to be 10 watts/m². What is the maximum value of the electric field strength at the observer's location?
a. 87 N/C
b.61 N/C
O c. 48 N/C
d. 74 N/C
e. 100 N/C
Transcribed Image Text:QUESTION 4 An observer at a fixed distance from a light bulb measures the light intensity at her location to be 10 watts/m². What is the maximum value of the electric field strength at the observer's location? a. 87 N/C b.61 N/C O c. 48 N/C d. 74 N/C e. 100 N/C
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