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2 years ago

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A 60-W light bulb emits spherical electromagnetic waves uniformly in all directions. If 50% of the power input to such a light b

ulb is emitted as electromagnetic radiation, what is the radiation intensity at a distance of 2.00 m from the light bulb?
A) 15 W/m2
B) 4.8 W/m2
C) 2.4 W/m2
D) 0.60 W/m2
E) 1.2 W/m2

1 answer:

makkiz [27]2 years ago

4 0

Answer:

a

Explanation:

A 60-W light bulb emits spherical electromagnetic waves uniformly in all directions. If 50% of the power input to such a light bulb is emitted as electromagnetic radiation, what is the radiation intensity at a distance of 2.00 m from the light bulb

so i did 60(50%)=30÷2=15

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