Science
Friction
Friction Let, a block is projected with initial velocity v along a surface of ground…
Science
Center of mass(C.M)
A point with reference to a body at which the entire mass of the body is meant to b…
Science
In still air, a helium filled balloon rises up to a certain height and then stops rising, why?
The upthrust on a body due to a fluid depends on the weight of displaced fluid. In …
Science
Temperature
Temperature is that the degree of hotness or coldness of a body. When a hot body i…
Science
Pratically there there is no atmosphere in the moon. Why?
On the moon surface , the escape velocity is low(i.e. 24km/s). Generally the air mol…
Science
Reversible Process
If the effects produced by a process on the system as well as on the surrounding ca…
Science
What are the restrictions of first law of thermodynamics?
Ans: the primary law of thermodynamics has following limitations. (a) It doesn't…
Science
Elestric Fastigue
Elastic fatigue is the property of an elastic body by virtue of which its behaviour b…
Science
Dew point
Dew point is the temperature at which the amount of water vapour which is present in a…
Science
Why it takes longer time to dry wet cloths in rainy summer than in sunny winter ?
Rate of evaporation is inversely operational to value of atmospheric relative humidity…
Science
Modern theory
According to this theory, when surfaces of two bodies come in contact, then intermolec…
Social Plugin