Increase
Decrease
Constant
None of the above
When a body is immersed in a liquid, the force acting on it is
When a body is negatively charged by friction, it means that
When a body is taken from earth to moon
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
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 due to the phenomenon of :
When a bullet is fired from a gun
When a capacitor is connected to a battery
When a card placed over a tumbler is flicked with the finger, the coin placed over it falls in the tumbler.
When a CD (compact disc used in audio and video systems) is seen in sunlight, rainbow like colours are seen. This can be explained on the basis of the phenomenon of
When a constant force acts on an object with a mass of 8 kg for a duration of 3 s. it increases the objects velocity from 4 m/s to 6 m/s . What is the magnitude of the applied force?
