Question
When a liquid is heated in a container, which of the
following processes primarily causes the heat transfer within the liquid?Solution
In liquids and gases, convection is the primary mode of heat transfer. Hot liquid becomes lighter (lower density) and rises, while cooler liquid (higher density) sinks, creating convection currents. Conduction happens mainly in solids; radiation involves electromagnetic waves and does not need a medium.
The concept of venture capital was originated in:
Scientific name of potato is:
Which of the following statement is correct about Rouging?
Scientific name of Safflower is
Which soil structure grade indicates no noticeable aggregation?
What is the term used for castrated female pig?
Which one of the following is NOT a pressure unit?
Which of the following crops has not been identified as a focus crop under the Agricultural Export Policy?
The book, Historia naturalis was prepared by
Cryopreservation of seeds involves storage at:
