263926 The electric field associated with an e.m. wave in vacuum is given by \(\overrightarrow{\mathrm{E}}=40 \cos \left(\mathrm{kz}-6 \times 10^{\circ} \mathrm{t}\right) \hat{i}\), where \(\mathrm{E}, \mathrm{z}\) and t are in volttm, meter and seconds respectively. The value of wave vector \(\mathbf{k}\) is:
263926 The electric field associated with an e.m. wave in vacuum is given by \(\overrightarrow{\mathrm{E}}=40 \cos \left(\mathrm{kz}-6 \times 10^{\circ} \mathrm{t}\right) \hat{i}\), where \(\mathrm{E}, \mathrm{z}\) and t are in volttm, meter and seconds respectively. The value of wave vector \(\mathbf{k}\) is:
263926 The electric field associated with an e.m. wave in vacuum is given by \(\overrightarrow{\mathrm{E}}=40 \cos \left(\mathrm{kz}-6 \times 10^{\circ} \mathrm{t}\right) \hat{i}\), where \(\mathrm{E}, \mathrm{z}\) and t are in volttm, meter and seconds respectively. The value of wave vector \(\mathbf{k}\) is:
263926 The electric field associated with an e.m. wave in vacuum is given by \(\overrightarrow{\mathrm{E}}=40 \cos \left(\mathrm{kz}-6 \times 10^{\circ} \mathrm{t}\right) \hat{i}\), where \(\mathrm{E}, \mathrm{z}\) and t are in volttm, meter and seconds respectively. The value of wave vector \(\mathbf{k}\) is: