A molecule of water appear as shown in figure. Its dipole moment, assuming that all the electrons in the molecule rotate symmetrically about the oxygen nucleus is nearly (Take cos 52⁰ = 0.616).

• A

  $1\times {10}^{-29}\mathrm{Cm}$

• B

  $2\times {10}^{-29}\mathrm{Cm}$

• C

  $2\times {10}^{-9}\mathrm{Cm}$

• D

  $1\times {10}^{-9}\mathrm{Cm}$