Advertisements
Advertisements
प्रश्न
Give a reason for the following:
An empty tumbler lowered into a glass beaker containing water, on tilting shows bubbles of air coming out, but when not tilted, no bubbles are seen.
Advertisements
उत्तर
This is because, when we tilt the glass tumbler, the water enters inside it, which leads to the pushing of the air out of the glass tumbler. So, air comes out in the form of bubbles in the water present in the glass beaker. This is because when the tumbler is not tilted, the water pressure is the same all around the mouth of the tumbler. But, when tilted, the water pressure is higher on the lower side of the tumbler. This high pressure pushes the air from one end, and the bubbles are seen in the water.
Hence, an empty glass tumbler lowered into a glass beaker containing water, when tilted, shows bubbles of air coming out, but when not tilted, no bobbles are seen.
APPEARS IN
संबंधित प्रश्न
Write your observation and conclusion for the following:
Ice is kept at room temperature.
State three main characteristics of the particles of matter.
Define interconversion of states of matter.
Why do solids, liquids and gases differ in their physical states?
Give two examples for the following :
Substances that are rigid and not compressible.
Write true or false for the following statement
The inter-molecular forces are effective at all distances between the two molecules.
What are fluids? Give two examples.
Give reason :
A gas fills up the space available to it.
Multiple choice question.
Which one is a kind of matter:
Identify the odd term out and explain.
