Questions
In a methane molecule each hydrogen atom is at a corner of a regular tetrahedron with the carbon atom at the centre. In coordinates where one of the C-H bonds is in the direction of , an adjacent C-H bond is in the direction. Then angle between these two bonds.
detailed solution
Correct option is
cosθ = i^+j^+k^.(i^−j^−k^)3 = 1-1-13=-13Talk to our academic expert!
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Three forces 9 N, 12 N and 15 N acting at a point are in equilibrium the angle between 9 N and 15 N is
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