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Questions  

A rectangular box containing water is accelerated upwards at 3 m / s2 on a inclined plane making 30" to the horizontal as shown in fig. The side of the free  liquid surface is 

a
0.23
b
1/3
c
3
d
0.32

detailed solution

Correct option is A

see figThe slope is given bytan⁡θ=axay+g=acos⁡30∘asin⁡30∘+g =3×(3/2)(3/2)+9⋅8=3322⋅6=0⋅23

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