Question

A source emits 45 joules of energy in 15 s. What is the radiant flux of the source?

Answer 1

Given,

Total energy emitted (E) = 45 J

Time (t) = 15 s

Radiant flux of the source is given by,

`"Radiant Flux"="Total energy emitted"/"Time"`

`=45/15=3"W"`

So, the radiant flux of the source is 3 W.