About `5%` of the power of a `100 W` light bulb is converted to visible radiation. What is the average intensity of visible radiation
(a) at a distance of `1 m` from the bulb?
(b) at a distance of `10 m` ?
Assume that the radiation is esmitted isotropically and neglect reflection.
A. `0.4 W//m^(2)`
B. `0.5 W//m^(2)`
C. `0.6 W//m^(2)`
D. `0.8 W//m^(2)`
