The thermos flask is designed to?
...The thermos flask is designed to?
prevent heat loss or gain by conduction, convection amd radiation
store hot tea or water
prevent heat gain by conduction, convection and radiation
prevent head lost conduction, convention and radiation
Correct answer is A
No explanation has been provided for this answer.
When two like charges are brought together, the potential energy of the system formed will ...
Which of the following radiations cannot be deflected by a magnetic field? ...
Determine the focal length of a thin converging lens if the power is 5.0 dioptres ...
Which of the following units is equivalent to the unit of electric current? ...
Which of the following statements are not true of a moving-coil milliammeter? I. It can be used t...