Assume that we have a lamp that has a radiance of \(95 \mathrm{~W} /\left(\mathrm{cm}^{2} \mathrm{sr}ight)\) at \(\lambda=546 \mathrm{~nm}\). What is the radiance of a \(1 \mathrm{~W}\) Argon laser at \(\lambda=\) \(546 \mathrm{~nm}\), assuming a diffraction-limited beam? Which is larger and by now much?