- #1
Jahnavi
- 848
- 102
Homework Statement
Homework Equations
The Attempt at a Solution
The radiations from the bulb spread radially outwards such that "Power at a distance r" = Power radiated/4πr2 .
If distance is unchanged and power halved then the intensity should also be halved .
From this I get E' = E/2 .
But this is wrong .