Question
Can two streamlines cross each other, why?

Answer

Two streamlines can never cross each other because if they cross them at the point of intersection, there will be two possible direction of flow of fluid which is impossible for streamlines.

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

Similar questions

Suppose a charged particle moves with a velocity v near a wire carrying an electric current. A magnetic force, therefore, acts on it. If the same particle is seen from a frame moving with velocity v in the same direction, the charge will be found at rest. Will the magnetic force become zero in this frame? Will the magnetic field become zero in this frame?
Write the work energy theorem.
In an elastic collision, relative velocity of approach between two bodies is always ______to relative velocity of separation.
Why is the necessary for a pendulum performing simple harmonic motion that its amplitude be less than its length?
  1. On the basis of Charle's law, what is the minimum possible temperature?
  2. What is the volume of gas at absolute zero temperature?
The density of water is 1000 $kg m ^{-3}$. The density of water vapour at $100^{\circ} C$ and $1 atm$ pressure is $0.6 kg m ^{-3}$. The volume of a molecule multiplied by the total number gives , what is called, molecular volume. The ratio (or fraction) of the molecular volume to the total volume occupied by the water vapour under the above conditions of temperature and pressure is $6 \times 10^{-4}$. The volume of a water molecule is $3 \times 10^{-29} m ^3$. What is the average distance between atoms (interatomic distance) in water?
Why is it cooler at the top of mountains?
Write dimensional formula for compressibility.
Answer the following :
There were two fixed points in the original Celsius scale as mentioned above which were  assigned the number 0°C and 100°C respectively. On the absolute scale, one of the fixed points is the triple-point of water, which on the Kelvin absolute scale is assigned the number 273.16 K. What is the other fixed point on this (Kelvin) scale?
The number of molecules in a container is doubled. What will be the effect on the rms speed of the molecules?