Download App

Mechanical Properties of Fluids — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsMechanical Properties of Fluids1 Mark
MCQ
Along a streamline:
  • A
    The velocity of a fluid particle remains constant.
  • ✓
    The velocity of all fluid particles crossing a given position is constant.
  • C
    The velocity of all fluid particles at a given instant is constant.
  • D
    The speed of a fluid particle remains constant.
✓

Answer

Correct option: B.
The velocity of all fluid particles crossing a given position is constant.
As discussed above for a streamline flow of a liquid velocity of each particle at a particular cross$-$section is constant, because $Av=$ constant $($law of continuity$)$ between two cross$-$section of a tube of flow.
So we can say that along a streamline, the velocity of every fluid particle while crossing a given position is the same.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Mechanical Properties of Fluids→Mechanical Properties of Fluids — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Kepler discovered
→
In a wave motion $y = a\sin (kx - \omega t)$, $y$ can represent
→
Why the spring is made up of steel in comparison of copper
→
A heat engine operates between a cold reservoir at temperature ${T}_{2}=400\, {K}$ and a hot reservoir at temperature ${T}_{1} .$ It takes $300 \,{J}$ of heat from the hot reservoir and delivers $240\, {J}$ of heat to the cold reservoir in a cycle. The minimum temperature of the hot reservoir has to be $....{K}$
→
Wave equations of two particles are given by ${y_1} = a\sin (\omega \,t - kx)$, ${y_2} = a\sin (kx + \omega \,t)$, then
→
The temperature of food material in refrigerator is $4^{\circ} C$ and temperature of environment is $15^{\circ} C$. If carnot cycle is used in its working gas, then find its carnot efficiency.
→
A student plotted the following four graphs representing the variation of velocity of sound in a gas with the pressure $p$ at constant temperature. Which one is correct?
→
When a car is at rest, its driver sees rain drops falling on it vertically. When driving the car with speed $v,$ he sees that rain drops are coming at an angle $60^{\circ}$ from the horizontal. On further increasing the speed of the car to $(1+\beta) v ,$ this angle changes to $45^{\circ} .$ The value of $\beta$ is close to$......$
→
A particle is confined to rotate in a circular path decreasing linear speed, then which of the following is correct?
→
The node point in stationary wave:
→