Advertisements
Advertisements
Question
The size of an air bubble rising up in water ______.
Options
decreases
increases
remains same
may increase or decrease
Advertisements
Solution
The size of an air bubble rising up in water increases.
APPEARS IN
RELATED QUESTIONS
Fill in the blank with suitable word :
In order to sink in a fluid, the density of an object must be .................. than the ................ of the fluid.
A liquid exerts pressure in all directions.
Describe an experiment to show that a liquid exerts pressure at the bottom of the container in which it is kept.
A dam has broader walls at the bottom than at the top. Give a reason.
The air pressure on our body is equal to ______ pressure.
An object is put one by one in three liquids having different densities. The object floats with `1/9, 2/11` and `3/7` parts of their volumes outside the liquid surface in liquids of densities d1, d2 and d3 respectively. Which of the following statement is correct?
All flowing substances such as liquids or gases are called fluids.
State whether the liquids and gases also exert pressure.
A liquid flowing out of a very small opening of a tube or tap comes out in the form of fine drops and not as a continuous stream. Why?
Assertion (A): The force acting on the surface of a liquid at rest, under gravity, in a container is always horizontal.
Reason (R): The forces acting on a fluid at rest have to be normal to the surface.
