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 does not wet the walls of the glass vessel in which it is kept?
Water
Alcohol
Mercury
Phenol
When you walk on a woolen carpet and bring your finger near the metallic handle of a door, an electric shock is produced. This is because
charge is transferred from your body to the handle
a chemical reaction occurs when you touch the handle
the temperature of the human body is higher than that of the handle
the human body and the handle arrive at thermal equilibrium by the process
A deep-sea diver may hurt his eardrum during diving because of
Lack of oxygen
high atmospheric pressure
high water pressure
All of the above
A person stands on his two feet over a surface and experiences a pressure P. Now, the person stands on only one foot. He would experience a pressure of magnitude -
4 P
P
(1/2)P
2 P
The seeds of flowering plants are made up of -
Ovary and the ovary wall
Embryo, food reserves and coat
Cotyledons
Zygotes
