What is the radiation intensity

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Reference no: EM131392530

1. How many watts of power are emitted by a 1-cd source?

2. A laser with a 0.03-mrad divergence, 1000 W of power, and 2-cm exit diameter is aimed at the moon (238,000 mi). What is the beam size on the moon? What is the radiation intensity?

Reference no: EM131392530

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