Physics-

#### Figure shows a stream of fluid emerging from a tube in the base of an open fixed tank. The expression of ‘y’ (Maximum height traveled by jet of water) is

Physics-General

#### Answer:The correct answer is:

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### Related Questions to study

physics-

#### For the arrangement shown in figure the time interval after which the water jet ceases to cross the wall (area of cross section of tank is A and orifice is ‘a’)

Velocity of efflux =

Find ‘h’ to have range of ejected water

time taken by liquid to drain out from H to h is

Find ‘h’ to have range of ejected water

time taken by liquid to drain out from H to h is

#### For the arrangement shown in figure the time interval after which the water jet ceases to cross the wall (area of cross section of tank is A and orifice is ‘a’)

physics-General

Velocity of efflux =

Find ‘h’ to have range of ejected water

time taken by liquid to drain out from H to h is

Find ‘h’ to have range of ejected water

time taken by liquid to drain out from H to h is

physics-

#### A thin movable plate is separated from two fixed plates and by two highly viscous liquids of coefficients of viscosity and as shown, where Area of contact of movable plate with each fluid is same. If the distance between two fixed plates is ‘h’, then the distance ‘’ of movable plate from upper plate such that movable plate can be moved with a finite velocity by applying the minimum possible force on movable plate is ( assume only linear velocity distribution in each liquid).

Viscous force due to upper liquid

Viscous force due to lower liquid =

If total force is minimum

Viscous force due to lower liquid =

If total force is minimum

#### A thin movable plate is separated from two fixed plates and by two highly viscous liquids of coefficients of viscosity and as shown, where Area of contact of movable plate with each fluid is same. If the distance between two fixed plates is ‘h’, then the distance ‘’ of movable plate from upper plate such that movable plate can be moved with a finite velocity by applying the minimum possible force on movable plate is ( assume only linear velocity distribution in each liquid).

physics-General

Viscous force due to upper liquid

Viscous force due to lower liquid =

If total force is minimum

Viscous force due to lower liquid =

If total force is minimum

physics-

#### A vertical jet of water coming out of a nozzle with velocity 20 m/s supports a plate of mass M stationary at a height h = 15m, as shown in the figure. If the rate of water flow is 1 litre per second, the mass of the plate is (Assume the collision to be inelastic).

Force by liquid = Mg

But and

But and

#### A vertical jet of water coming out of a nozzle with velocity 20 m/s supports a plate of mass M stationary at a height h = 15m, as shown in the figure. If the rate of water flow is 1 litre per second, the mass of the plate is (Assume the collision to be inelastic).

physics-General

Force by liquid = Mg

But and

But and

physics-

#### A conical flask of mass 10 kg and base area as 10^{3} cm^{2} is floating in liquid of relative density 1.2, as shown in the figure. The force that liquid exerts on curved surface of conical flask will be (Given g = 10 m/s^{2})

= Buoyant force = weight

F = 20 N in down ward direction

#### A conical flask of mass 10 kg and base area as 10^{3} cm^{2} is floating in liquid of relative density 1.2, as shown in the figure. The force that liquid exerts on curved surface of conical flask will be (Given g = 10 m/s^{2})

physics-General

= Buoyant force = weight

F = 20 N in down ward direction

physics-

#### A sphere of radius ‘R’ floats in a liquid of density ‘s’ such that its diameter x-x is below distance ‘h’ from free surface as shown. The density of sphere is r. The sphere is depressed slightly and released. The frequency of small oscillation is

and

#### A sphere of radius ‘R’ floats in a liquid of density ‘s’ such that its diameter x-x is below distance ‘h’ from free surface as shown. The density of sphere is r. The sphere is depressed slightly and released. The frequency of small oscillation is

physics-General

and

maths-

#### The function

#### The function

maths-General

physics

#### A particle is thrown in upward direction with Velocity V_{0} It passes through a point p of height h at time t_{1} and t2 so t_{1}+t_{1}

#### A particle is thrown in upward direction with Velocity V_{0} It passes through a point p of height h at time t_{1} and t2 so t_{1}+t_{1}

physicsGeneral

physics

#### The distance travelled by a particle is given by S=3+2t +5t^{2}The initial velocity of the particle is…..

#### The distance travelled by a particle is given by S=3+2t +5t^{2}The initial velocity of the particle is…..

physicsGeneral

maths-

#### If

#### If

maths-General

physics

#### A freely falling particle covers a building of 45 m height in one second. Find the height of the point from where the particle was released.[g=10 ms^{-2}]

#### A freely falling particle covers a building of 45 m height in one second. Find the height of the point from where the particle was released.[g=10 ms^{-2}]

physicsGeneral

maths-

maths-General

physics-

#### Two hollow hemispheres of metal are fitted together to form a sphere of radius R. Air from the shall is pumped out and pressure remained left inside is th the outside atmospheric pressure P_{0}. The force required to separate the hemisphers is

Excess pressure exists outside

#### Two hollow hemispheres of metal are fitted together to form a sphere of radius R. Air from the shall is pumped out and pressure remained left inside is th the outside atmospheric pressure P_{0}. The force required to separate the hemisphers is

physics-General

Excess pressure exists outside

physics-

#### An iron block and a wooden block are positioned in a vessel containing water as shown in the figure. The iron block (I) hangs from a massless string with a rigid support from the top while the wooden block floats being tied to the bottom through a massless string. If now the vessel starts accelerating upwards, the incorrect option is

#### An iron block and a wooden block are positioned in a vessel containing water as shown in the figure. The iron block (I) hangs from a massless string with a rigid support from the top while the wooden block floats being tied to the bottom through a massless string. If now the vessel starts accelerating upwards, the incorrect option is

physics-General

physics-

#### A U-tube in which the cross-sectional area of the limb on the left is one quarter, the limb on the right contains mercury (density 13.6 g/cm^{3}). The level of mercury in the narrow limb is at a distance of 36 cm from the upper end of the tube. What will be the rise in the level of mercury in the right limb if the left limb is filled to the top with water

If the rise of level in the right limb be x cm. the fall of level of mercury in left limb be 4x cm because the area of cross section of right limb is 4 times as that of left limb.

Level of water in left limb is (36 + 4x) cm.

Now equating pressure at interface of Hg and water (at A' B')

By solving we get x = 0.56 cm.

Level of water in left limb is (36 + 4x) cm.

Now equating pressure at interface of Hg and water (at A' B')

By solving we get x = 0.56 cm.

#### A U-tube in which the cross-sectional area of the limb on the left is one quarter, the limb on the right contains mercury (density 13.6 g/cm^{3}). The level of mercury in the narrow limb is at a distance of 36 cm from the upper end of the tube. What will be the rise in the level of mercury in the right limb if the left limb is filled to the top with water

physics-General

If the rise of level in the right limb be x cm. the fall of level of mercury in left limb be 4x cm because the area of cross section of right limb is 4 times as that of left limb.

Level of water in left limb is (36 + 4x) cm.

Now equating pressure at interface of Hg and water (at A' B')

By solving we get x = 0.56 cm.

Level of water in left limb is (36 + 4x) cm.

Now equating pressure at interface of Hg and water (at A' B')

By solving we get x = 0.56 cm.

physics-

#### A homogeneous solid cylinder of length L. Cross-sectional area is immersed such that it floats with its axis vertical at the liquid-liquid interface with length in the denser liquid as shown in the fig. The lower density liquid is open to atmosphere having pressure . Then density D of solid is given by

Weight of cylinder = upthrust due to both liquids

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#### A homogeneous solid cylinder of length L. Cross-sectional area is immersed such that it floats with its axis vertical at the liquid-liquid interface with length in the denser liquid as shown in the fig. The lower density liquid is open to atmosphere having pressure . Then density D of solid is given by

physics-General

Weight of cylinder = upthrust due to both liquids

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