[填空题]
A TV remote control emits IR lig x6vf*v4*xtbbji of:42hs: vxht. If the detector on the TV set i ikhb:. e/tov 0beb98lgy 2wy9s not to react to visible light, could it make u eyvbk ow0l9bt9:28e/ ybihg.se of silicon as a "window" with its energy gap $ E_g = 1.14\ \text{eV} $? $\lambda $ = $\mu m$
What is the shortest-wavelength light that can strike silicon without causing electrons to jump from the valence band to the conduction band?