Two small spheres each having the charge $+\mathrm{Q}$ are suspended by insulating threads of length L from a hook. This arrangement is taken in space where there is no gravitational effect, then the angle between the two suspensions and the tension in each will be

• A

  ${180}^{\mathrm{o}},\mathrm{\hspace{0.17em}}\frac{1}{4{\mathrm{\pi \epsilon }}_0}\frac{{\mathrm{Q}}^2}{{\left(2\mathrm{L}\right)}^2}$

• B

  ${90}^{\mathrm{o}},\mathrm{\hspace{0.17em}}\frac{1}{4{\mathrm{\pi \epsilon }}_0}\frac{{\mathrm{Q}}^2}{{\mathrm{L}}^2}$

• C

  ${180}^{\mathrm{o}},\mathrm{\hspace{0.17em}}\frac{1}{4{\mathrm{\pi \epsilon }}_0}\frac{{\mathrm{Q}}^2}{2{\mathrm{L}}^2}$

• D

  ${180}^{\mathrm{o}},\mathrm{\hspace{0.17em}}\frac{1}{4{\mathrm{\pi \epsilon }}_0}\frac{{\mathrm{Q}}^2}{{\mathrm{L}}^2}$