Question
Write two factors affecting viscosity. Which one is more viscous : pure water or saline water?

Answer

Force and velocity of fluid. Saline water.

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

Sound waves from a loudspeaker spread nearly uniformly in all directions if the wavelength of the sound is much larger than the diameter of the loudspeaker.
  1. Calculate the frequency for which the wavelength of sound in air is ten times the diameter of the speaker if the diameter is 20cm.
  2. Sound is essentially transmitted in the forward direction if the wavelength is much shorter than the diameter of the speaker. Calculate the frequency at which the wavelength of the sound is one tenth of the diameter of the speaker described above. Take the speed of sound to be 340m/s.
A heat engine takes heat $Q_1$ at a temperature of 500 K and gives heat $Q_2$ at a temperature of 300 K to the sink and does $8 \times 10^5$ joules of work. Calculate the magnitude of $Q_1$ and $Q_2$.
Two bodies of unequal mass are moving in the same direction with equal kinetic energy. The two bodies are brought to rest by applying retarding force of same magnitude. How would the distance moved by them before coming to rest compare?
If force F, length L and time T are taken as fundamental units then what will be the dimensions of mass?
A block of mass M is held against a rough vertical wall by pressing it with a finger. If the coefficient of friction between the block and the wall is $\mu$ and the acceleration due to gravity is g, calculate the minimum force required to be applied by the finger to hold the block against the wall?
A spring attached with a mass m oscillates with a frequency f. What will be the frequency when the same is taken to the moon? Why?
Find the temperature at which the root mean square velocity of oxygen molecules is equal to the root mean square velocity of hydrogen molecules at 200 K. (Molecular weight of oxygen $=32$, molecular weight of hydrogen $= 2$)
A bird is tossing (flying to and fro) between two cars moving towards each other on a straight road. One car has a speed of 18m/h while the other has the speed of 27km/h. The bird starts moving from first car towards the other and is moving with the speed of 36km/h and when the two cars were separted by 36km. What is the total distance covered by the bird? What is the total displacement of the bird?
Calculate the mass of 1cm3 of oxygen kept at STP.
The resistance R is the ratio of potential difference V and current I. What is the percentage error in R if V is $(100\pm5)\text{V}$ and I is $(10\pm2)$ A?