Determine the average light intensity of the laser beam

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Reference no: EM13305498

A low-power laser used in a physics lab might have a power of 0.40 mW and a beam diameter of 2.6 mm.

(a) Calculate the average light intensity of the laser beam.

=75.34 W/m^2

(b) Compare it to the intensity of a light bulb producing 60 W light viewed from 2.0 m (I laser/ I bulb)

Reference no: EM13305498

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