Consider the barometer shown in figure. If a small hole is made at a point P in the barometer tube, will the mercury come out from this hole?

Consider the barometer shown in figure. Density of mercury is rho . A small hole is made at point S as shown. The mercury come out from this hole with speed v equal to

Compare the pressure at the point P in the three tubes shown in the figure .

Torricelli was the first do devise an experiment for measuring atmospheric pressure . He took calibrated hard glass tube , 1 m in lengt and of uniform cross section , closed at one end . He filled the whole tube with dry mercury taking care than no air or water droplets remain inside the tube , closed the opposite end of the tube tightly with thumb and inverted it . He put this inverted mercury tube into a mercury through , taking care that the end of the tube remains inside the mercury through , An interesting thing was noticed . Mercury in the tube fell down at first and then stopped at a particular position . The height was 76 cm above the free surface of mercury in the through . When the given tube was inclined or lowered in the mercury trough , the vertical haight of mercury level in the tube was always found constant . Torricelli explained this by saying that the free surface of mrcury in the trough . Hence , the hydrostatic pressure exerted by the trough measures the atmospheric pressure . If a small hole is made at point P in the barometer tube , then

Torricelli was the first do devise an experiment for measuring atmospheric pressure . He took calibrated hard glass tube , 1 m in lengt and of uniform cross section , closed at one end . He filled the whole tube with dry mercury taking care than no air or water droplets remain inside the tube , closed the opposite end of the tube tightly with thumb and inverted it . He put this inverted mercury tube into a mercury through , taking care that the end of the tube remains inside the mercury through , An interesting thing was noticed . Mercury in the tube fell down at first and then stopped at a particular position . The height was 76 cm above the free surface of mercury in the through . When the given tube was inclined or lowered in the mercury trough , the vertical haight of mercury level in the tube was always found constant . Torricelli explained this by saying that the free surface of mercury in the trough . Hence , the hydrostatic pressure exerted by the trough measures the atmospheric pressure . If an additional hole is also made at P ' at the top point of the tube , then A. mercury will not come out of the tube B. mercury may come out of the tube after some time . C. mercury will come out of the tube instantly D. none of these

Consider the diffraction pattern for a small pinhole. As the size of the hole is increased

A cylinider is filled with non viscous liquid of density d to a height h_(0) and a hole is made at a height h_(1) from the bottom of the cylinder. The velocity issuing out of the hole is

A rectangular tank of height 10m filled with water, is placed near the bottom of a plane inclined at an angle 30^(@) with horizontal. At height h form bottom a small hole is made (as shown in figure) such that the stream coming out from hole, strikes the inclined plane normally. Calculate h.

There are two holes on a water tank as shown in figure. Area of hole 2 is two times that of area of hole 1. Suppose v is the speed of liquid coming out and Q the volume of liquid flowing per second. Then

An open vessel full of water is falling freely under gravity. There is a small hole in one face of the vessel, was shown in te figure. The water which comes out from the hole at the instant when hole is at height H above the ground strikes the ground at a distance of x from P. Which of the followin is correct for the situation described? (a). The value of x is 2sqrt((2hH)/(3)) (b). The value of x is sqrt((4hH)/(3)) (c). The value ofx can't be computed from information providec. (d). The question is irrevalent as no water comes out from the hole.

A container of cross-section area 'S' and height 'h' is filled with mercury up to the brim. Then the container is sealed airtight and a hole of small cross section area 'S//n' (where 'n' is a positive constant) is puched in its bottom. Find out the time interval upto which the mercury will come out from the bottom hole. [Take the atmospheric pressure to be equal to h_(0) height of mercury column: h gt h_(0) ]