1.

Masses m, 2m, 3m, 4m,………,12m are kept on the peripheri of a clock having a circular dial. The masses are kept such that m is kept at 1, 2miskeptat2, 3mat3………12mat 12. vec g is the gravitational field intensity at the centre of dial.

Answer»

At `9 : 30` the hour hand is in the direction of `vecg`
At `3 : 30` the hour hand is in the direction of `vecg`
there will be no COMPONENT of `vecg` along hour hand at `6 : 30`
There will be no component of `vecg` along hour hand at `12 : 30`

Solution :The field will be in the direction lying exactly between `9` and `10`.
`rArr A`, `C`, `D` are correct.


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