When a bottle of perfume is opened in one corner of a room the smell spreads soon throughout the room. This is an example of -

Related MCQs

• When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is clue to the phenomenon of –
• A bottle of sodalime is grasped by the neck and swung briskly in a vertical circle, Near which portion of the bottle do the bubbles collect?
• On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because
• A small drop of oil spreads over water because :
• Ail oil drop spreads over water because
• A circular plate, a cube and a sphere, all made up of same material and having the same mass, are heated to 300°C and left in a room. Which of them will have the slowest rate of cooling?
• If the temperature inside a room is increased, the relative humidity will             ?
• Ventilators are provided near the ceiling of the room because –
• On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because –
• It is easier to carry two buckets of water in one hand each, than to carry only one in one hand because –