The energy gap of silicon is $1.14eV$. The maximum wavelength at which silicon starts energy absorption, will be

($h=6.62$ $\times$$10$${}^{-34}$$Js$, $c=3$ $\times$ $10$${}^8$$m/s$)

Q.

An important spectral emission line has a wavelength of 21 cm. The corresponding photon energy is
$(h=6.62\times {10}^{-34}Js$; $c=3\times {10}^{8}m/s)$

Q. The energy gap of silicon is 1.14 eV .The maximum wavelength ( in Angstrom) at which silicon will begin absorbing energy is ( Take $hc=12400eV-A^{\circ }$)

Q. The energy od proton in a light of wavelength 6000 $\mathring{A}$ is :
$(h=6.63\times {10}^{-34}$ $Js,$ $c=3\times {10}^{8}m/s)$

Q. The energy gap of silicon is 1.14 eV .The maximum wavelength ( in Angstrom) at which silicon will begin absorbing energy is ( Take $hc=12400eV-A^{\circ }$)

Q. An X-ray tube produces a continuous spectrum of radiation with its shortest wavelength of $45\times {10}^{-2}$ $A^0$. The maximum energy photon in the radiation in eV is.