Sunlight of intensity 1.3kW m ^ - 2 is incident normally on a thin...

Sunlight of intensity $1.3kW{m}^{- 2}$ is incident normally on a thin convex lens of focal length $20cm$ . Ignore the energy loss of light due to the lens and assume that the lens aperture size is much smaller than its focal length. The average intensity of light, in $kW{m}^{- 2}$ , at a distance $22cm$ from the lens on the other side is __________.