Which of the following surfaces will absorb radiant ...
Which of the following surfaces will absorb radiant heat energy?
white
red
black
blue
Correct answer is C
A black solution is a better radiator of heat and allow a better absorber of heat.
Total internal reflection occurs in an optical prism when light rays ...
Which of following functions is performed by manganese IV oxide in the Lenclanche cell? ...
Capacitors are used in the following devices, except ...
Determine the speed of the wave. ...
Which of the following statements is correct about a machine? ...
The current I in the fig above is ...
When some ice cubes are added to a glass of warm water, the glass is cooled by a process of ...