A fluid flows in steady flow through a pipe. The pipe has a circu… - Vidyadip

MCQ

A fluid flows in steady flow through a pipe. The pipe has a circular cross section, but its radius varies along its length. The mass of the fluid passing per second at the entrance point (radius $R$ ) of the pipe is $Q_1$ while that at the exit point (radius $R / 2$ ) is $Q_2$. Then, $Q_2$ is equal to

A
$\frac{1}{4} Q_1$
✓
$Q_1$
C
$2 \mathrm{Q}_1$
D
$4 Q_1$.

✓

Answer

Correct option: B.

$Q_1$

$Q_1$

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 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

The ratio of magnetic dipole moment of an electron of charge $e$ and mass $m$ in Bohr's orbit in hydrogen atom to its angular momentum is

The energy stored in a charged capacitor is U. The capacitor is isolated and connected across the terminals of an identical uncharged capacitor. The energy stored in each capacitor is

A circuit of negligible resistance has an inductor of $0.16 H$ and capacitor of $25 \mu F$ connected in series with an alternating voltage source. The resonating frequency of the circuit is

The magnetic moment of electron due to orbital motion is proportional to ( $n=$ principle quantum number)

When one end of the capillary is dipped in water, the height of water column is $h$. The upward force of 105 dyne due to surface tension is balanced by the force due to the weight of water column. The inner circumference of the capillary is (Surface tension of water $=7 \times 10^{-2} N / m$ )

Planck's constant is $6.6 \times 10^{-34} Js$. The momentum of each photon is given radiation Is $3.3 \times 10^{-}$ ${ }^{29} kg / s$. The $\lambda$ of radiation is

Two wavelengths of sodium light $590 nm$ and $596 nm$ are used one after another to study diffraction due to single slit of aperture $2 \times 10^{-6} m$. The distance between the slit and the screen is $1.5 m$. The separation between the position of first maximum of the diffraction pattern obtained in the two cases is

If AC voltage is applied to a pure capacitor, then the voltage across the capacitor ______

A parallel beam of light travelling in water is incident obliquely on a glass surface. After refraction, its width

If coefficient of emission is 'e' for a perfectly black body and coefficient of transmission is 't' then __________