A man standing 2 m from a charcoal fire is warmed mainly ...
A man standing 2 m from a charcoal fire is warmed mainly by?
convection
radiation
refraction
conduction
Correct answer is B
Radiation is the method of heat transfer with or without a material medium. It can be through space or through a material medium.
A body moving at a constant speed accelerates when it is in ...
Which of the following factors does not affect the the electric resistance of a wire? ...
I. change of state II. Diffusion III. Radiation IV. Osmosis which of the processes above can be ...
The molecular structure of a liquid is such that ...
If an object is placed in front of two mirrors inclined at 90o, how many images will be formed?...
The diagram above illustrates a waveform. Which of the point on the waveform are in phase? ...