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Standard XII

Physics

Terminal Velocity

If the whole ...

Question

If the whole system is falling freely under gravity then
a. $P_{1} = P_{2}$
b. $P_{2} = P_{3}$
c. $P_{3} = P_{4}$
d. $P_{1} = P_{4}$
Choose the correct option

only a and b are correct

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only b and c are correct

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only a, b and c are correct

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all a, b, c and d are correct

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Solution

The correct option is D all a, b, c and d are correct
Under free fall $g_{e f f e c t i v e} = 0$ ,
So pressure due $ρ g_{e f f e c t i v e} h = 0$
Hence, pressure at every point will be same.

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If the whole system is falling freely under gravity then a.P1=P2b.P2=P3c. P3=P4d. P1=P4Choose the correct option

The correct option is D all a, b, c and d are correctUnder free fall geffective=0, So pressure due ρgeffectiveh=0Hence, pressure at every point will be same.

If the whole system is falling freely under gravity then
a. $P_{1} = P_{2}$
b. $P_{2} = P_{3}$
c. $P_{3} = P_{4}$
d. $P_{1} = P_{4}$
Choose the correct option

The correct option is D all a, b, c and d are correct
Under free fall $g_{e f f e c t i v e} = 0$ ,
So pressure due $ρ g_{e f f e c t i v e} h = 0$
Hence, pressure at every point will be same.