A room is heated by means of a charcoal fire, An occupant...
A room is heated by means of a charcoal fire, An occupant of the room standing away from the fire is warmed mainly by
convection
radiation
conduction
reflection
Correct answer is B
No explanation has been provided for this answer.
A string is sustaining a stationary wave when ...
Boiling occurs when the vapour pressure of a liquid is ...
When some ice cubes are added to a glass of warm water, the glass is cooled by a process of ...
Palm oil from a bottle flows out more easily after it has been heated because the ...
A blacksmith heated a metal whose cubic expansivity is 6.3 x 10-6K-1. The area expansivity is...