307148 Energy of an electron is given by \({\rm{E = - 2}}{\rm{.178 \times 1}}{{\rm{0}}^{{\rm{ - 18}}}}\,{\rm{J}}\left( {\frac{{{{\rm{Z}}^{\rm{2}}}}}{{{{\rm{n}}^{\rm{2}}}}}} \right)\). Wavelength of light required to excite an electron in an hydrogen atom from level \({\rm{n = 1}}\) to \({\rm{n = 2}}\) will be \({\rm{(h = 6}}{\rm{.62 \times 1}}{{\rm{0}}^{{\rm{ - 34}}}}{\rm{J}}{\rm{.}}\,{\rm{s}}\,\,{\rm{and}}\,\,{\rm{c = 3}}{\rm{.0 \times 1}}{{\rm{0}}^{\rm{8}}}{\rm{m/s)}}\)
307148 Energy of an electron is given by \({\rm{E = - 2}}{\rm{.178 \times 1}}{{\rm{0}}^{{\rm{ - 18}}}}\,{\rm{J}}\left( {\frac{{{{\rm{Z}}^{\rm{2}}}}}{{{{\rm{n}}^{\rm{2}}}}}} \right)\). Wavelength of light required to excite an electron in an hydrogen atom from level \({\rm{n = 1}}\) to \({\rm{n = 2}}\) will be \({\rm{(h = 6}}{\rm{.62 \times 1}}{{\rm{0}}^{{\rm{ - 34}}}}{\rm{J}}{\rm{.}}\,{\rm{s}}\,\,{\rm{and}}\,\,{\rm{c = 3}}{\rm{.0 \times 1}}{{\rm{0}}^{\rm{8}}}{\rm{m/s)}}\)
307148 Energy of an electron is given by \({\rm{E = - 2}}{\rm{.178 \times 1}}{{\rm{0}}^{{\rm{ - 18}}}}\,{\rm{J}}\left( {\frac{{{{\rm{Z}}^{\rm{2}}}}}{{{{\rm{n}}^{\rm{2}}}}}} \right)\). Wavelength of light required to excite an electron in an hydrogen atom from level \({\rm{n = 1}}\) to \({\rm{n = 2}}\) will be \({\rm{(h = 6}}{\rm{.62 \times 1}}{{\rm{0}}^{{\rm{ - 34}}}}{\rm{J}}{\rm{.}}\,{\rm{s}}\,\,{\rm{and}}\,\,{\rm{c = 3}}{\rm{.0 \times 1}}{{\rm{0}}^{\rm{8}}}{\rm{m/s)}}\)
307148 Energy of an electron is given by \({\rm{E = - 2}}{\rm{.178 \times 1}}{{\rm{0}}^{{\rm{ - 18}}}}\,{\rm{J}}\left( {\frac{{{{\rm{Z}}^{\rm{2}}}}}{{{{\rm{n}}^{\rm{2}}}}}} \right)\). Wavelength of light required to excite an electron in an hydrogen atom from level \({\rm{n = 1}}\) to \({\rm{n = 2}}\) will be \({\rm{(h = 6}}{\rm{.62 \times 1}}{{\rm{0}}^{{\rm{ - 34}}}}{\rm{J}}{\rm{.}}\,{\rm{s}}\,\,{\rm{and}}\,\,{\rm{c = 3}}{\rm{.0 \times 1}}{{\rm{0}}^{\rm{8}}}{\rm{m/s)}}\)