Latest post

The outer surface of a beaker containing ice cubes becomes wet in short while - Give scientific reason.

Question  The outer surface of a beaker containing ice cubes becomes wet in short while. Answer  When ice cubes are placed in a beaker, ice starts melting.  The heat required for melting is absorbed from the surrounding air and also from the beaker to some extent.  Hence, the temperature of the air and beaker falls.  The capacity of air to hold water vapour depends upon the temperature of the air, and this capacity decreases as the temperature decreases.  At a certain low temperature, the surrounding air becomes saturated with water vapour present in it.  As the temperature falls further, the air is unable to hold all the water vapour.  Hence, the extra water vapour starts condensing on the cold outer surface of the beaker in the form of minute drops.  Therefore, The outer surface of the beaker containing ice cubes becomes wet in a short while.

The Value of 'g' Information

The Value Of 'g'

                          

                 DO YOU KNOW: THE VALUE OF 'g'

INFORMATION:- 

                        The value of g is the same for all object at a given place on the earth. thus, any two objects, irrespective of their masses or any other properties, when dropped from the same height and falling freely will reach the earth at same time. Galileo is said to have performed an experiment around 1590 in the Italian of Pisa. He dropped two spheres of different masses from the learning tower of Pisa to demonstrate that both spheres reached the ground at the same time.

what is High and low tides 

Gravitational waves 

                        when we drop a feather and a heavy stone at the same time. The Feather experiences a buoyant force and a frictional force due tov air and therefore floats and reaches the ground slowly, later than the heavy stone. The buoyant and frictional forces on the stone and does not affect the speed of a stone much. Recently, scientist performed this experiment in vacuum and showed that the feather and stone indeed reach the earth at the same time.

Open the above link:- https://www.youtube.com/watch?v=eRNC5kcvINA 


                    

Comments

Popular posts

With a specific initial velocity, we can jump higher on the moon than on the earth, give scientific reason.

What is an Ellipse

Weightlessness In Space Information

What is the Low And High Tides

Gravitation force

Gravitational Waves Information

Disaster Information

Effects of water pollution and soil pollution

Ecosystem