JEE Main 2022 · 29 Jul · Shift 2, Physics question 52

Nearly 10% of the power of a 110 W light bulb is converted to visible radiation. The change in average intensities of visible radiation, at a distance of 1 m from the bulb to a distance of 5 m is $a\times10^{-2}$ W/m$^2$. The value of 'a' will be _______.