Motion — Science STD 9 — Question

In the bell jar experiment, as air is removed from the jar:

When a toothpaste tube is squeezed, its shape changes. The force responsible for this is an example of:

Which of the following represent the suitable condition for the liquefaction of gases?

Goldstein’s experiments which involved passing high voltage electricity through gases at very low pressure resulted in the discovery of:

Cork cells are made impervious to water and gases by the presence of:

A sprinter is running along the circumference of a big sports stadium with constant speed Which of following do you think is changing in this case?

The material which is added to water during purification process at the water works so as to disinfect it is:

1. Potassium permanganate.
2. Betadine.
3. Chlorine.
4. Potash alum.

The value of acceleration due to gravity of earth:

1. Is the same on equator and poles.
2. Is the least on poles.
3. Is the least on equator.
4. Increases from pole to equator.

Actively dividing cells are present in: