Home
Class 12
PHYSICS
At what speed will the velocity of a str...

At what speed will the velocity of a stream of water be equal to 20 cm of mercury column?
(Taking, g =10 `ms^(-2))`

A

2.8 m/s

B

10.32 m/s

C

5.6 m/s .

D

8.4 m/s

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

At what speed will the velocity head of a stream of water be equal to 20 cm of mercury . Taking (g=10ms^(-2)) .

The velocity head of a stream of water is equal to 20 cm of mercury column. What is the velocity of flow in the stream ? The relative density of mercury is 13.6. (g = 9.8 ms^(-2))

If the velocity head of a stream of water is equal to 10 cm, then its speed of flow is approximately

An open vessel contains water upto height 50 cm in it. What is the velocity of efflux through an orifice at height 30 cm above the bottom level ? [Take g = 10 m//s^(2) ]

A disc of mass 10 g is kept floating horizontal in the air by firing bullets, each of mass 5g, with the same velocity at the same rate of 10 bullets per second. The bullets rebound with the same speed in positive direction . The velocity of each bullet at the time of impact is (Take g = 9.8 ms^(-2))

A ball is projected with a velocity 20 sqrt(3) ms^(-1) at angle 60^(@) to the horizontal. The time interval after which the velocity vector will make an angle 30^(@) to the horizontal is (Take, g = 10 ms^(-2))

A block moving on a horizontal surface with velocity 20 ms^(-1) comes to rest because of surface friction over a distance of 40 m. Taking g = 10 ms^(-2) , the coefficient of dynamic friction is :

A particle is projected with velocity 20 ms ^(-1) at angle 60^@ with horizontal . The radius of curvature of trajectory , at the instant when velocity of projectile become perpendicular to velocity of projection is , (g=10 ms ^(-1))

A body falls freely for 10 s. Its average velocity during this journey is (Take g = 10 ms^(-2))

The diagram (figure) shows a venturimeter, through which water is flowing the speed of water at X is 2cm/s. the speed of water at Y (taking g=1000cm//s^(2) ) is