Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
Which one among the following is NOT a source of renewable energy?
Hydroelectricity
Solar energy
Fuel cell
Wind energy
A liquid rises to a certain length in a capillary tube. The tube is inclined to an angle of 45°. The length of the liquid column will:
Increase
Decrease
Remain unchanged
First decrease and then increase.
When a liquid rises in a capillary tube, it does so due to capillary action, which is caused by the adhesive forces between the liquid molecules and the walls of the tube. In this case, the angle at which the tube is inclined to is 45°.
increase.
decrease.
remain unchanged.
first decrease and then increase.
Mass of B is four times that of A, B moves with a velocity half that of A. Then B has :
kinetic energy equal to that of A.
half the kinetic energy of A.
twice the kinetic energy of A.
kinetic energy one-fourth of A.
In a pressure cooker, cooking is faster because the increase of vapour pressure
increases specific heat
decreases specific heat
decreases the boiling point
increases the boiling point
