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Questions  

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
1×10−29Cm
b
2×10−29Cm
c
2×10−9Cm
d
1×10−9Cm

detailed solution

Correct option is B

P=2Pcos⁡52∘=2(e)(d)cos⁡52∘=2×1.0−29

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