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A cubical block rests on a plane of mu= ...

A cubical block rests on a plane of `mu= sqrt(3)` . The angle through which the plane be inclined to the horizontal so that the block just slides down will be -

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`75^(@)`

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The correct Answer is:
C
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