Download App

Mechanical Properties of Fluids — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsMechanical Properties of Fluids1 Mark
MCQ
Average pressure $p_{av}$ is defined as:
  • ✓
    $\text{P}_\text{av}=\frac{\text{F}}{\text{A}}$
  • B
    $\text{P}_\text{av}=\frac{\text{V}}{\text{F}}$
  • C
    $\text{P}_\text{av}=\frac{\text{A}}{\text{F}}$
  • D
    $\text{P}_\text{av}=\frac{\text{F}}{\text{V}}$
✓

Answer

Correct option: A.
$\text{P}_\text{av}=\frac{\text{F}}{\text{A}}$
If $F$ is the magnitude of the normal force acting over an area $A,$ then the average pressure $p$ is defined as the normal force acting per unit area.
$\text{P}_\text{av}=\frac{\text{F}}{\text{A}}$

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

When will the efficiency of Carnot engine be high?
→
A small block starts slipping down from a point $B$ on an inclined plane $A B,$ which is making an angle $\theta$ with the horizontal section $BC$ is smooth and the remaining section $CA$ is rough with a coefficient of friction $\mu .$ It is found that the block comes to rest as it reaches the bottom (point $A)$ of the inclined plane. If $B C=2A C$, the coefficient of friction is given by $\mu=k \tan \theta$ .The value of $k$ is
→
The acceleration of a particle performing S.H.M. is at a distance of $3\; cm$ from the mean position is $ 12\,cm/sec^2 $. Its time period is ..... $\sec$
→
Initial angular velocity of a circular disc of mass $M$ is $\omega_{1}$. Then two small spheres of mass $m$ are attached gently to two diametrically opposite points on the edge of the disc. What is the final angular velocity of the disc?
→
A thermally insulated vessel contains an ideal gas of molecular mass $M$ and ratio of specific heats $\gamma$. It is moving with speed $v$ and it's suddenly brought to rest. Assuming no heat is lost to the surroundings, its temperature increases by
→
Three forces given by vectors $2 \hat{i}+2 \hat{j}, 2 \hat{i}-2 \hat{j}$ and $-4 \hat{i}$ are acting together on a point object at rest. The object moves along the direction
→
In the expression for time period $T$ of simple pendulum $T=2 \pi \sqrt{\frac{l}{g}}$, if the percentage error in time period $T$ and length $l$ are $2 \%$ and $2 \%$ respectively then percentage error in acceleration due to gravity $g$ is equal to ......... $\%$
→
A cup of tea cools from $65.5^\circ C$ to $62.5^\circ C$ in one minute in a room of $22.5^\circ C.$ How long will the same cup of tea take to cool from $46.5^\circ C$ to $40.5^\circ C$ in the same room. $($Choose the nearest value in min.$)$
→
A body of mass $5\, kg$ moving with a velocity $10\, m/s$ collides with another body of the mass $20\, kg$ at rest and comes to rest. the velocity of the second body due to collision is ............ $\mathrm{m}/ \mathrm{s}$
→
If time of flight of a projectile is $10$ seconds. Range is $500$ meters. The maximum height attained by it will be  ......... $m$
→