Your eye is 2.5 m away from a 60W light bulb that emits light in all...

Question

Question

Your eye is 2.5 m away from a 60W light bulb that emits light in all directions. 5.0% of the bulb's power is converted into light.

What is the intensity of the light when it reaches your eye? (Surface area of a sphere of a radius, R is given by, A = 4piR^2)

a. 2.3e5 W/m^2

b. 920 W/m^2

c. 0.77 W/m^2

d. 0.038 W/m^2

e. 0.00014 W/m^2

Answer 1

Answer #1

Answer 2

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