Question
A piece of wood is held under water. The up thrust on it
will be:Solution
According to the Archimedes' principle, a floating object will experience an upthrust force from water, equal to the weight of water displaced (pushed aside). It will sink into the water until it reaches the point where the weight of the water pushed aside equals its own weight.
Which one of the following is a compound?
A positively charged particle enters a uniform electric field directed downward. The force acting on the particle is:
What is the reason for twinkling of stars?
Which one of the following crops enriches nitrogen content in the soil?
Which device is used to measure atmospheric pressure?
Which of the following vitamin contains Cobalt?
The spokes used in the wheel of a bicycle increase its –
Electromagnetic waves travelling in a medium having relative permeability μr = 1.2 and relative permittivity Er = 0.012. The speed of electromagnetic w...
What is the main cause of the 'Itai-Itai' disease?
Which enzyme is present in human saliva?
