Question
What is called stream line flow?
✓
Answer
When the flow of a fluid is such that the direction of every particle of the fluid passing through a point is the same as that of first particle that passed through that point, then the flow of the fluid is on streamline represents the direction of velocity of the liquid at that point.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A gas thermometer measures the temperature from the variation of pressure of a sample of gas. If the pressure measured at the melting point of lead is 2.20 times the pressure measured at the triple point of water, find the melting point of lead.
In the figure, three blocks are tied with two strings $A$ and $B . m_1=10 kg, m_2=5 kg, m_3=5 kg$. The bottom is frictionless. If $m _3$ is pulled to the right by applying a horizontal force of 50 N then calculate the tension in the strings.
→Name the fundamental forces of nature.
Elasticity is said to be internal property of matter. Explain.
How does the elasticity of material change on:
- Increasing the temperature.
- On heating and cooling gradually.
- On hammering.
A spectroscopic instrument can resolve two nearby wavelengths $\lambda$ and $\lambda+\Delta\lambda$ if $\frac{\lambda}{\Delta\lambda}$ is smaller than 8000. This is used to study the spectral lines of the Balmer series of hydrogen. Approximately how many lines will be resolved by the instrument?
→Define gravitational field strength. What is the field at a point distance r from a mass M?
Which of the following functions of time represent (a) simple harmonic, (b) periodic but not simple harmonic, and (c) non-periodic motion? Give period for each case of periodic motion ($\omega$ is any positive constant):
→$\sin\omega\text{t}-\cos\omega\text{t}$
Is friction a non-conservative force?
If net torque on a rigid body is zero, does its linear momentum necessary remain conserved?