A piece of cork floating on water is acted upon by the fo...
A piece of cork floating on water is acted upon by the forces of...
Weight and viscosity
weight and upthrust
upthrust and viscosity
weight only
upthrust only
Correct answer is B
No explanation has been provided for this answer.
Four cells each of e.m.f 1.5V and internal resistance of 4Ω are connected in parallel. What is...
Which of the following statements on the use of X-rays is incorrect? X-rays are used ...
When two waves are superimposed on each other, the following occurrences are possible, except ...
The process of producing electric current by a changing magnetic field is referred to as ...
Which of the following quantities has the same unit as the watt? ...