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Standard IX

Physics

Buoyancy

The direction...

Question

The directions of forces acting on a box fish in water are shown in the figure given below. Their magnitudes are not made up to the scale. Which one of these is correct related to forces acting on the box fish?

F_{3} = F_{4}

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F_{1} = F_{2}

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F_{3} < F_{4}

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F_{1} < F_{2}

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Solution

The correct options are
B $F_{1} = F_{2}$
C $F_{3} < F_{4}$
At a certain depth, lateral pressure is same at all points in all lateral directions. So, $F_{1} = F_{2}$
Bottom part of the fish is at a higher depth than its top part. So. pressure at the bottom part will be more than that at its top part. So $F_{3} < F_{4}$

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The directions of forces acting on a box fish in water are shown in the figure given below. Their magnitudes are not made up to the scale. Which one of these is correct related to forces acting on the box fish?

The correct options are B F1=F2 C F3<F4At a certain depth, lateral pressure is same at all points in all lateral directions. So, F1=F2Bottom part of the fish is at a higher depth than its top part. So. pressure at the bottom part will be more than that at its top part. So F3<F4